868513902 has 32 divisors (see below), whose sum is σ = 1907953920. Its totient is φ = 262342080.

The previous prime is 868513889. The next prime is 868513927. The reversal of 868513902 is 209315868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162999 + ... + 168242.

It is an arithmetic number, because the mean of its divisors is an integer number (59623560).

Almost surely, 2^868513902 is an apocalyptic number.

868513902 is an abundant number, since it is smaller than the sum of its proper divisors (1039440018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

868513902 is a wasteful number, since it uses less digits than its factorization.

868513902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331288.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 868513902 is about 29470.5599200287. The cubic root of 868513902 is about 954.0964021441.

The spelling of 868513902 in words is "eight hundred sixty-eight million, five hundred thirteen thousand, nine hundred two".