90908609091520 has 112 divisors (see below), whose sum is σ = 236164345653600. Its totient is φ = 33056476037120.

The previous prime is 90908609091491. The next prime is 90908609091523. The reversal of 90908609091520 is 2519090680909.

It is a super-3 number, since 3×90908609091520³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90908609091523) 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 in 15 ways as a sum of consecutive naturals, for example, 99545136 + ... + 100454224.

It is an arithmetic number, because the mean of its divisors is an integer number (2108610229050).

Almost surely, 2^{90908609091520} is an apocalyptic number.

It is an amenable number.

90908609091520 is an abundant number, since it is smaller than the sum of its proper divisors (145255736562080).

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

90908609091520 is a wasteful number, since it uses less digits than its factorization.

90908609091520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937526 (or 937516 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 58.

The spelling of 90908609091520 in words is "ninety trillion, nine hundred eight billion, six hundred nine million, ninety-one thousand, five hundred twenty".