868064775 has 24 divisors (see below), whose sum is σ = 1444361424. Its totient is φ = 460012800.

The previous prime is 868064731. The next prime is 868064783. The reversal of 868064775 is 577460868.

It is not a de Polignac number, because 868064775 - 2⁶ = 868064711 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25086 + ... + 48635.

It is an arithmetic number, because the mean of its divisors is an integer number (60181726).

Almost surely, 2^868064775 is an apocalyptic number.

868064775 is a deficient number, since it is larger than the sum of its proper divisors (576296649).

868064775 is a wasteful number, since it uses less digits than its factorization.

868064775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73891 (or 73886 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 51.

The square root of 868064775 is about 29462.9390081845. The cubic root of 868064775 is about 953.9319126106.

The spelling of 868064775 in words is "eight hundred sixty-eight million, sixty-four thousand, seven hundred seventy-five".