90544851792 has 30 divisors (see below), whose sum is σ = 253399828682. Its totient is φ = 30181617216.

The previous prime is 90544851791. The next prime is 90544851797. The reversal of 90544851792 is 29715844509.

It is a happy number.

90544851792 is a `hidden beast` number, since 9 + 0 + 544 + 8 + 5 + 1 + 7 + 92 = 666.

It can be written as a sum of positive squares in only one way, i.e., 79030703376 + 11514148416 = 281124^2 + 107304^2 .

It is a super-2 number, since 2×90544851792² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90544851791) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 314391703 + ... + 314391990.

Almost surely, 2^90544851792 is an apocalyptic number.

It is an amenable number.

90544851792 is an abundant number, since it is smaller than the sum of its proper divisors (162854976890).

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

90544851792 is a wasteful number, since it uses less digits than its factorization.

90544851792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628783707 (or 628783698 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 90544851792 in words is "ninety billion, five hundred forty-four million, eight hundred fifty-one thousand, seven hundred ninety-two".