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864538467077 = 19401113471383
BaseRepresentation
bin11001001010010101000…
…00100001101100000101
310001122112011122120011002
430211022200201230011
5103131033321421302
61501055151423045
7116314032502115
oct14451240415405
93048464576132
10864538467077
1130371547629a
1211b678224a85
13636aaa5b22c
142dbb5899045
151774e1d0c02
hexc94a821b05

864538467077 has 8 divisors (see below), whose sum is σ = 912309927360. Its totient is φ = 816993950400.

The previous prime is 864538467049. The next prime is 864538467083. The reversal of 864538467077 is 770764835468.

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

It is not a de Polignac number, because 864538467077 - 28 = 864538466821 is a prime.

It is a super-2 number, since 2×8645384670772 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864538467007) 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, 56728073 + ... + 56743310.

It is an arithmetic number, because the mean of its divisors is an integer number (114038740920).

Almost surely, 2864538467077 is an apocalyptic number.

It is an amenable number.

864538467077 is a deficient number, since it is larger than the sum of its proper divisors (47771460283).

864538467077 is a wasteful number, since it uses less digits than its factorization.

864538467077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113471803.

The product of its (nonzero) digits is 189665280, while the sum is 65.

The spelling of 864538467077 in words is "eight hundred sixty-four billion, five hundred thirty-eight million, four hundred sixty-seven thousand, seventy-seven".

Divisors: 1 19 401 7619 113471383 2155956277 45502024583 864538467077