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6892934642881 = 73160112552167
BaseRepresentation
bin110010001001110001011…
…1010111011110011000001
3220101221212110121022020021
41210103202322323303001
51400413212232033011
622354323115213441
71310666226514000
oct144234272736301
926357773538207
106892934642881
1122183059a8931
12933a91a47281
133b000210b801
1419b896ac4c37
15be47b08a471
hex644e2ebbcc1

6892934642881 has 16 divisors (see below), whose sum is σ = 8043429254400. Its totient is φ = 5904538886400.

The previous prime is 6892934642861. The next prime is 6892934642911. The reversal of 6892934642881 is 1882464392986.

It is a de Polignac number, because none of the positive numbers 2k-6892934642881 is a prime.

It is a super-2 number, since 2×68929346428812 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6892934642881.

It is not an unprimeable number, because it can be changed into a prime (6892934642861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5726941 + ... + 6825226.

It is an arithmetic number, because the mean of its divisors is an integer number (502714328400).

Almost surely, 26892934642881 is an apocalyptic number.

It is an amenable number.

6892934642881 is a deficient number, since it is larger than the sum of its proper divisors (1150494611519).

6892934642881 is a wasteful number, since it uses less digits than its factorization.

6892934642881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12553789 (or 12553775 counting only the distinct ones).

The product of its digits is 286654464, while the sum is 70.

The spelling of 6892934642881 in words is "six trillion, eight hundred ninety-two billion, nine hundred thirty-four million, six hundred forty-two thousand, eight hundred eighty-one".

Divisors: 1 7 49 343 1601 11207 78449 549143 12552167 87865169 615056183 4305393281 20096019367 140672135569 984704948983 6892934642881