90975912774 has 16 divisors (see below), whose sum is σ = 182706815280. Its totient is φ = 30199472640.

The previous prime is 90975912773. The next prime is 90975912779. The reversal of 90975912774 is 47721957909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90975912773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31456339 + ... + 31459230.

It is an arithmetic number, because the mean of its divisors is an integer number (11419175955).

Almost surely, 2^90975912774 is an apocalyptic number.

90975912774 is an abundant number, since it is smaller than the sum of its proper divisors (91730902506).

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

90975912774 is a wasteful number, since it uses less digits than its factorization.

90975912774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62915815.

The product of its (nonzero) digits is 10001880, while the sum is 60.

The spelling of 90975912774 in words is "ninety billion, nine hundred seventy-five million, nine hundred twelve thousand, seven hundred seventy-four".