90812464332885 has 24 divisors (see below), whose sum is σ = 157408810846560. Its totient is φ = 48433148361312.

The previous prime is 90812464332881. The next prime is 90812464332899. The reversal of 90812464332885 is 58823346421809.

90812464332885 is a `hidden beast` number, since 9 + 0 + 81 + 2 + 46 + 433 + 2 + 8 + 85 = 666.

It is not a de Polignac number, because 90812464332885 - 2² = 90812464332881 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90812464332881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10435642 + ... + 17044868.

It is an arithmetic number, because the mean of its divisors is an integer number (6558700451940).

Almost surely, 2^{90812464332885} is an apocalyptic number.

It is an amenable number.

90812464332885 is a deficient number, since it is larger than the sum of its proper divisors (66596346513675).

90812464332885 is a wasteful number, since it uses less digits than its factorization.

90812464332885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6914577 (or 6914574 counting only the distinct ones).

The product of its (nonzero) digits is 79626240, while the sum is 63.

The spelling of 90812464332885 in words is "ninety trillion, eight hundred twelve billion, four hundred sixty-four million, three hundred thirty-two thousand, eight hundred eighty-five".