90311912679 has 8 divisors (see below), whose sum is σ = 122977923840. Its totient is φ = 58926921656.

The previous prime is 90311912641. The next prime is 90311912681. The reversal of 90311912679 is 97621911309.

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 90311912679 - 2¹¹ = 90311910631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90311912609) by changing a digit.

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, 320254869 + ... + 320255150.

It is an arithmetic number, because the mean of its divisors is an integer number (15372240480).

Almost surely, 2^90311912679 is an apocalyptic number.

90311912679 is a deficient number, since it is larger than the sum of its proper divisors (32666011161).

90311912679 is a wasteful number, since it uses less digits than its factorization.

90311912679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640510069.

The product of its (nonzero) digits is 183708, while the sum is 48.

The spelling of 90311912679 in words is "ninety billion, three hundred eleven million, nine hundred twelve thousand, six hundred seventy-nine".