2351395631232 has 72 divisors (see below), whose sum is σ = 6766535637615. Its totient is φ = 783781195008.

The previous prime is 2351395631231. The next prime is 2351395631239. The reversal of 2351395631232 is 2321365931532.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

2351395631232 is a `hidden beast` number, since 2 + 3 + 5 + 1 + 3 + 9 + 5 + 631 + 2 + 3 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1175697815616 + 1175697815616 = 1084296^2 + 1084296^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1084296.

It is a super-2 number, since 2×2351395631232² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2351395631231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 52023619 + ... + 52068797.

Almost surely, 2^{2351395631232} is an apocalyptic number.

It is an amenable number.

2351395631232 is an abundant number, since it is smaller than the sum of its proper divisors (4415140006383).

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

2351395631232 is an frugal number, since it uses more digits than its factorization.

2351395631232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90378 (or 45184 counting only the distinct ones).

The product of its digits is 874800, while the sum is 45.

The spelling of 2351395631232 in words is "two trillion, three hundred fifty-one billion, three hundred ninety-five million, six hundred thirty-one thousand, two hundred thirty-two".