90693430563 has 8 divisors (see below), whose sum is σ = 124192805968. Its totient is φ = 58828171104.

The previous prime is 90693430549. The next prime is 90693430567. The reversal of 90693430563 is 36503439609.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90693430563 - 2¹⁷ = 90693299491 is a prime.

It is the 301154-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90693430567) by changing a digit.

It is a nontrivial repunit in base 301153.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408528856 + ... + 408529077.

It is an arithmetic number, because the mean of its divisors is an integer number (15524100746).

Almost surely, 2^90693430563 is an apocalyptic number.

90693430563 is a deficient number, since it is larger than the sum of its proper divisors (33499375405).

90693430563 is a wasteful number, since it uses less digits than its factorization.

90693430563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817057973.

The product of its (nonzero) digits is 1574640, while the sum is 48.

The spelling of 90693430563 in words is "ninety billion, six hundred ninety-three million, four hundred thirty thousand, five hundred sixty-three".