90863289623423 has 4 divisors (see below), whose sum is σ = 90884918594448. Its totient is φ = 90841660652400.

The previous prime is 90863289623321. The next prime is 90863289623467. The reversal of 90863289623423 is 32432698236809.

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 90863289623423 - 2¹⁸ = 90863289361279 is a prime.

It is a super-2 number, since 2×90863289623423² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90863289623423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90863289623473) 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, 10814479211 + ... + 10814487612.

It is an arithmetic number, because the mean of its divisors is an integer number (22721229648612).

Almost surely, 2^{90863289623423} is an apocalyptic number.

90863289623423 is a deficient number, since it is larger than the sum of its proper divisors (21628971025).

90863289623423 is a wasteful number, since it uses less digits than its factorization.

90863289623423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21628971024.

The product of its (nonzero) digits is 161243136, while the sum is 65.

The spelling of 90863289623423 in words is "ninety trillion, eight hundred sixty-three billion, two hundred eighty-nine million, six hundred twenty-three thousand, four hundred twenty-three".