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68895000777 = 3157146273887
BaseRepresentation
bin100000000101001110…
…1100100100011001001
320120211102002122220110
41000022131210203021
52112044110011102
651352214544533
74656165562401
oct1001235444311
9216742078813
1068895000777
1127244482879
1211428968149
13665c536365
143497d75801
151bd35dd86c
hex100a7648c9

68895000777 has 8 divisors (see below), whose sum is σ = 92445097216. Its totient is φ = 45637452432.

The previous prime is 68895000721. The next prime is 68895000799. The reversal of 68895000777 is 77700059886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68895000777 - 222 = 68890806473 is a prime.

It is a super-2 number, since 2×688950007772 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68895010777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73136473 + ... + 73137414.

It is an arithmetic number, because the mean of its divisors is an integer number (11555637152).

Almost surely, 268895000777 is an apocalyptic number.

It is an amenable number.

68895000777 is a deficient number, since it is larger than the sum of its proper divisors (23550096439).

68895000777 is a wasteful number, since it uses less digits than its factorization.

68895000777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146274047.

The product of its (nonzero) digits is 5927040, while the sum is 57.

The spelling of 68895000777 in words is "sixty-eight billion, eight hundred ninety-five million, seven hundred seventy-seven", and thus it is an aban number.

Divisors: 1 3 157 471 146273887 438821661 22965000259 68895000777