90804266679 has 16 divisors (see below), whose sum is σ = 138441254400. Its totient is φ = 51860834400.

The previous prime is 90804266677. The next prime is 90804266743. The reversal of 90804266679 is 97666240809.

It is not a de Polignac number, because 90804266679 - 2¹ = 90804266677 is a prime.

It is a super-2 number, since 2×90804266679² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90804266677) by changing a digit.

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, 1097379 + ... + 1177220.

It is an arithmetic number, because the mean of its divisors is an integer number (8652578400).

Almost surely, 2^90804266679 is an apocalyptic number.

90804266679 is a deficient number, since it is larger than the sum of its proper divisors (47636987721).

90804266679 is a wasteful number, since it uses less digits than its factorization.

90804266679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276510.

The product of its (nonzero) digits is 7838208, while the sum is 57.

The spelling of 90804266679 in words is "ninety billion, eight hundred four million, two hundred sixty-six thousand, six hundred seventy-nine".