90810004752 has 120 divisors (see below), whose sum is σ = 265045813760. Its totient is φ = 28991416320.

The previous prime is 90810004751. The next prime is 90810004763. The reversal of 90810004752 is 25740001809.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (90810004751) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 328149 + ... + 537867.

Almost surely, 2^90810004752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90810004752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132522906880).

90810004752 is an abundant number, since it is smaller than the sum of its proper divisors (174235809008).

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

90810004752 is a wasteful number, since it uses less digits than its factorization.

90810004752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209861 (or 209852 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 90810004752 in words is "ninety billion, eight hundred ten million, four thousand, seven hundred fifty-two".