90757406208 has 80 divisors (see below), whose sum is σ = 276323921280. Its totient is φ = 25930684416.

The previous prime is 90757406197. The next prime is 90757406237. The reversal of 90757406208 is 80260475709.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4209738 + ... + 4231241.

It is an arithmetic number, because the mean of its divisors is an integer number (3454049016).

Almost surely, 2^90757406208 is an apocalyptic number.

It is an amenable number.

90757406208 is an abundant number, since it is smaller than the sum of its proper divisors (185566515072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90757406208 is an equidigital number, since it uses as much as digits as its factorization.

90757406208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8441007 (or 8440991 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 90757406208 in words is "ninety billion, seven hundred fifty-seven million, four hundred six thousand, two hundred eight".