90213199957 has 8 divisors (see below), whose sum is σ = 96945529536. Its totient is φ = 83639278272.

The previous prime is 90213199927. The next prime is 90213199961. The reversal of 90213199957 is 75999131209.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90213199957 - 2³⁵ = 55853461589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90213199898 and 90213199907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90213199927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39600793 + ... + 39603070.

It is an arithmetic number, because the mean of its divisors is an integer number (12118191192).

Almost surely, 2^90213199957 is an apocalyptic number.

It is an amenable number.

90213199957 is a deficient number, since it is larger than the sum of its proper divisors (6732329579).

90213199957 is a wasteful number, since it uses less digits than its factorization.

90213199957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79203947.

The product of its (nonzero) digits is 1377810, while the sum is 55.

The spelling of 90213199957 in words is "ninety billion, two hundred thirteen million, one hundred ninety-nine thousand, nine hundred fifty-seven".