90623561423 has 8 divisors (see below), whose sum is σ = 91981569792. Its totient is φ = 89265712536.

The previous prime is 90623561417. The next prime is 90623561429. The reversal of 90623561423 is 32416532609.

It is an interprime number because it is at equal distance from previous prime (90623561417) and next prime (90623561429).

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 90623561423 - 2³⁴ = 73443692239 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 (90623561429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1615736 + ... + 1670882.

It is an arithmetic number, because the mean of its divisors is an integer number (11497696224).

Almost surely, 2^90623561423 is an apocalyptic number.

90623561423 is a deficient number, since it is larger than the sum of its proper divisors (1358008369).

90623561423 is a wasteful number, since it uses less digits than its factorization.

90623561423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79741.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 90623561423 in words is "ninety billion, six hundred twenty-three million, five hundred sixty-one thousand, four hundred twenty-three".