231545353240044 has 36 divisors (see below), whose sum is σ = 586823384399616. Its totient is φ = 76980265389408.

The previous prime is 231545353240043. The next prime is 231545353240057. The reversal of 231545353240044 is 440042353545132.

231545353240044 is a `hidden beast` number, since 2 + 3 + 1 + 5 + 4 + 535 + 32 + 40 + 0 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×231545353240044² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231545353240043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8396612019 + ... + 8396639594.

It is an arithmetic number, because the mean of its divisors is an integer number (16300649566656).

Almost surely, 2^{231545353240044} is an apocalyptic number.

It is an amenable number.

231545353240044 is an abundant number, since it is smaller than the sum of its proper divisors (355278031159572).

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

231545353240044 is a wasteful number, since it uses less digits than its factorization.

231545353240044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16793252006 (or 16793252001 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 45.

The spelling of 231545353240044 in words is "two hundred thirty-one trillion, five hundred forty-five billion, three hundred fifty-three million, two hundred forty thousand, forty-four".