864452512 has 72 divisors (see below), whose sum is σ = 2159771040. Its totient is φ = 336792960.

The previous prime is 864452507. The next prime is 864452543. The reversal of 864452512 is 215254468.

It is a super-2 number, since 2×864452512² = 1494556291006220288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7812 + ... + 42307.

It is an arithmetic number, because the mean of its divisors is an integer number (29996820).

Almost surely, 2^864452512 is an apocalyptic number.

It is an amenable number.

864452512 is an abundant number, since it is smaller than the sum of its proper divisors (1295318528).

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

864452512 is a wasteful number, since it uses less digits than its factorization.

864452512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50154 (or 50139 counting only the distinct ones).

The product of its digits is 76800, while the sum is 37.

The square root of 864452512 is about 29401.5732912373. The cubic root of 864452512 is about 952.6068794812.

The spelling of 864452512 in words is "eight hundred sixty-four million, four hundred fifty-two thousand, five hundred twelve".