90028832623 has 2 divisors, whose sum is σ = 90028832624. Its totient is φ = 90028832622.

The previous prime is 90028832599. The next prime is 90028832653. The reversal of 90028832623 is 32623882009.

It is a weak prime.

It is an emirp because it is prime and its reverse (32623882009) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90028832623 - 2⁹ = 90028832111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90028832623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90028832653) by changing a digit.

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 as a sum of consecutive naturals, namely, 45014416311 + 45014416312.

It is an arithmetic number, because the mean of its divisors is an integer number (45014416312).

Almost surely, 2^90028832623 is an apocalyptic number.

90028832623 is a deficient number, since it is larger than the sum of its proper divisors (1).

90028832623 is an equidigital number, since it uses as much as digits as its factorization.

90028832623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 90028832623 in words is "ninety billion, twenty-eight million, eight hundred thirty-two thousand, six hundred twenty-three".