90560291638 has 16 divisors (see below), whose sum is σ = 137302485264. Its totient is φ = 44793216000.

The previous prime is 90560291587. The next prime is 90560291659. The reversal of 90560291638 is 83619206509.

It is a super-2 number, since 2×90560291638² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90560291591 and 90560291600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333006 + ... + 540382.

It is an arithmetic number, because the mean of its divisors is an integer number (8581405329).

Almost surely, 2^90560291638 is an apocalyptic number.

90560291638 is a deficient number, since it is larger than the sum of its proper divisors (46742193626).

90560291638 is a wasteful number, since it uses less digits than its factorization.

90560291638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209727.

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 90560291638 in words is "ninety billion, five hundred sixty million, two hundred ninety-one thousand, six hundred thirty-eight".