86265555903 has 20 divisors (see below), whose sum is σ = 128954695848. Its totient is φ = 57470711760.

The previous prime is 86265555899. The next prime is 86265555983. The reversal of 86265555903 is 30955556268.

86265555903 is a `hidden beast` number, since 8 + 626 + 5 + 5 + 5 + 5 + 9 + 0 + 3 = 666.

It is not a de Polignac number, because 86265555903 - 2² = 86265555899 is a prime.

It is a super-2 number, since 2×86265555903² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 86265555903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86265555983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 248793 + ... + 484178.

Almost surely, 2^86265555903 is an apocalyptic number.

86265555903 is a deficient number, since it is larger than the sum of its proper divisors (42689139945).

86265555903 is a wasteful number, since it uses less digits than its factorization.

86265555903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734436 (or 734427 counting only the distinct ones).

The product of its (nonzero) digits is 9720000, while the sum is 54.

The spelling of 86265555903 in words is "eighty-six billion, two hundred sixty-five million, five hundred fifty-five thousand, nine hundred three".