90434565513 has 12 divisors (see below), whose sum is σ = 136307171520. Its totient is φ = 57668418456.

The previous prime is 90434565509. The next prime is 90434565527. The reversal of 90434565513 is 31556543409.

90434565513 is a `hidden beast` number, since 9 + 0 + 4 + 34 + 565 + 51 + 3 = 666.

It is not a de Polignac number, because 90434565513 - 2² = 90434565509 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90434565583) 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, 218440773 + ... + 218441186.

It is an arithmetic number, because the mean of its divisors is an integer number (11358930960).

Almost surely, 2^90434565513 is an apocalyptic number.

It is an amenable number.

90434565513 is a deficient number, since it is larger than the sum of its proper divisors (45872606007).

90434565513 is a wasteful number, since it uses less digits than its factorization.

90434565513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436881988 (or 436881985 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The spelling of 90434565513 in words is "ninety billion, four hundred thirty-four million, five hundred sixty-five thousand, five hundred thirteen".