90818954532 has 144 divisors (see below), whose sum is σ = 238006641600. Its totient is φ = 29179883520.

The previous prime is 90818954521. The next prime is 90818954533. The reversal of 90818954532 is 23545981809.

90818954532 is a `hidden beast` number, since 9 + 0 + 8 + 18 + 95 + 4 + 532 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (90818954533) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 97759444 + ... + 97760372.

It is an arithmetic number, because the mean of its divisors is an integer number (1652823900).

Almost surely, 2^90818954532 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 90818954532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119003320800).

90818954532 is an abundant number, since it is smaller than the sum of its proper divisors (147187687068).

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

90818954532 is a wasteful number, since it uses less digits than its factorization.

90818954532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706 (or 1701 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 54.

The spelling of 90818954532 in words is "ninety billion, eight hundred eighteen million, nine hundred fifty-four thousand, five hundred thirty-two".