90197608315883 has 4 divisors (see below), whose sum is σ = 90453125620248. Its totient is φ = 89942091011520.

The previous prime is 90197608315811. The next prime is 90197608315907. The reversal of 90197608315883 is 38851380679109.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90197608315883 - 2¹⁰ = 90197608314859 is a prime.

It is a super-2 number, since 2×90197608315883² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90197608315583) 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 3 ways as a sum of consecutive naturals, for example, 127758651653 + ... + 127758652358.

It is an arithmetic number, because the mean of its divisors is an integer number (22613281405062).

Almost surely, 2^{90197608315883} is an apocalyptic number.

90197608315883 is a deficient number, since it is larger than the sum of its proper divisors (255517304365).

90197608315883 is a wasteful number, since it uses less digits than its factorization.

90197608315883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255517304364.

The product of its (nonzero) digits is 78382080, while the sum is 68.

The spelling of 90197608315883 in words is "ninety trillion, one hundred ninety-seven billion, six hundred eight million, three hundred fifteen thousand, eight hundred eighty-three".