90363242979 has 16 divisors (see below), whose sum is σ = 136066087840. Its totient is φ = 59254584480.

The previous prime is 90363242969. The next prime is 90363242989. The reversal of 90363242979 is 97924236309.

90363242979 is a `hidden beast` number, since 90 + 3 + 63 + 2 + 429 + 79 = 666.

It is an interprime number because it is at equal distance from previous prime (90363242969) and next prime (90363242989).

It is not a de Polignac number, because 90363242979 - 2²¹ = 90361145827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90363242969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27431032 + ... + 27434325.

It is an arithmetic number, because the mean of its divisors is an integer number (8504130490).

Almost surely, 2^90363242979 is an apocalyptic number.

90363242979 is a deficient number, since it is larger than the sum of its proper divisors (45702844861).

90363242979 is a wasteful number, since it uses less digits than its factorization.

90363242979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54865427 (or 54865421 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 54.

The spelling of 90363242979 in words is "ninety billion, three hundred sixty-three million, two hundred forty-two thousand, nine hundred seventy-nine".