90879942463823 has 4 divisors (see below), whose sum is σ = 95663097330360. Its totient is φ = 86096787597288.

The previous prime is 90879942463729. The next prime is 90879942463867. The reversal of 90879942463823 is 32836424997809.

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 90879942463823 - 2²⁰ = 90879941415247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90879942463223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2391577433240 + ... + 2391577433277.

It is an arithmetic number, because the mean of its divisors is an integer number (23915774332590).

Almost surely, 2^{90879942463823} is an apocalyptic number.

90879942463823 is a deficient number, since it is larger than the sum of its proper divisors (4783154866537).

90879942463823 is a wasteful number, since it uses less digits than its factorization.

90879942463823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4783154866536.

The product of its (nonzero) digits is 1128701952, while the sum is 74.

The spelling of 90879942463823 in words is "ninety trillion, eight hundred seventy-nine billion, nine hundred forty-two million, four hundred sixty-three thousand, eight hundred twenty-three".