90285521190 has 32 divisors (see below), whose sum is σ = 216741420000. Its totient is φ = 24069897984.

The previous prime is 90285521173. The next prime is 90285521213. The reversal of 90285521190 is 9112558209.

It is a super-2 number, since 2×90285521190² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271815 + ... + 504434.

It is an arithmetic number, because the mean of its divisors is an integer number (6773169375).

Almost surely, 2^90285521190 is an apocalyptic number.

90285521190 is an abundant number, since it is smaller than the sum of its proper divisors (126455898810).

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

90285521190 is a wasteful number, since it uses less digits than its factorization.

90285521190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780136.

The product of its (nonzero) digits is 64800, while the sum is 42.

The spelling of 90285521190 in words is "ninety billion, two hundred eighty-five million, five hundred twenty-one thousand, one hundred ninety".