65431213456 has 20 divisors (see below), whose sum is σ = 144883401472. Its totient is φ = 28041948576.

The previous prime is 65431213447. The next prime is 65431213457.

65431213456 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (65431213457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292103520 + ... + 292103743.

Almost surely, 2^65431213456 is an apocalyptic number.

It is an amenable number.

65431213456 is an abundant number, since it is smaller than the sum of its proper divisors (79452188016).

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

65431213456 is a wasteful number, since it uses less digits than its factorization.

65431213456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584207278 (or 584207272 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The spelling of 65431213456 in words is "sixty-five billion, four hundred thirty-one million, two hundred thirteen thousand, four hundred fifty-six".