864428996255 has 32 divisors (see below), whose sum is σ = 1159349889600. Its totient is φ = 613271526400.

The previous prime is 864428996243. The next prime is 864428996293. The reversal of 864428996255 is 552699824468.

It is not a de Polignac number, because 864428996255 - 2⁸ = 864428995999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26838701 + ... + 26870889.

It is an arithmetic number, because the mean of its divisors is an integer number (36229684050).

Almost surely, 2^864428996255 is an apocalyptic number.

864428996255 is a deficient number, since it is larger than the sum of its proper divisors (294920893345).

864428996255 is a wasteful number, since it uses less digits than its factorization.

864428996255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44155.

The product of its digits is 298598400, while the sum is 68.

The spelling of 864428996255 in words is "eight hundred sixty-four billion, four hundred twenty-eight million, nine hundred ninety-six thousand, two hundred fifty-five".