868539512 has 16 divisors (see below), whose sum is σ = 1630465200. Its totient is φ = 433748800.

The previous prime is 868539491. The next prime is 868539527. The reversal of 868539512 is 215935868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57989 + ... + 71412.

It is an arithmetic number, because the mean of its divisors is an integer number (101904075).

Almost surely, 2^868539512 is an apocalyptic number.

It is an amenable number.

868539512 is a deficient number, since it is larger than the sum of its proper divisors (761925688).

868539512 is a wasteful number, since it uses less digits than its factorization.

868539512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130246 (or 130242 counting only the distinct ones).

The product of its digits is 518400, while the sum is 47.

The square root of 868539512 is about 29470.9944182411. The cubic root of 868539512 is about 954.1057799133.

The spelling of 868539512 in words is "eight hundred sixty-eight million, five hundred thirty-nine thousand, five hundred twelve".