864199703424 has 64 divisors (see below), whose sum is σ = 2430561684240. Its totient is φ = 271121473536.

The previous prime is 864199703413. The next prime is 864199703467. The reversal of 864199703424 is 424307991468.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×864199703424² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66185239 + ... + 66198294.

Almost surely, 2^864199703424 is an apocalyptic number.

It is an amenable number.

864199703424 is an abundant number, since it is smaller than the sum of its proper divisors (1566361980816).

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

864199703424 is a wasteful number, since it uses less digits than its factorization.

864199703424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132383567 (or 132383555 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 864199703424 in words is "eight hundred sixty-four billion, one hundred ninety-nine million, seven hundred three thousand, four hundred twenty-four".