90897470541 has 16 divisors (see below), whose sum is σ = 138302459200. Its totient is φ = 58960520784.

The previous prime is 90897470537. The next prime is 90897470603. The reversal of 90897470541 is 14507479809.

90897470541 is a `hidden beast` number, since 9 + 0 + 8 + 97 + 4 + 7 + 0 + 541 = 666.

It is not a de Polignac number, because 90897470541 - 2² = 90897470537 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90897470141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45493231 + ... + 45495228.

It is an arithmetic number, because the mean of its divisors is an integer number (8643903700).

Almost surely, 2^90897470541 is an apocalyptic number.

It is an amenable number.

90897470541 is a deficient number, since it is larger than the sum of its proper divisors (47404988659).

90897470541 is a wasteful number, since it uses less digits than its factorization.

90897470541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90988505 (or 90988499 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 90897470541 in words is "ninety billion, eight hundred ninety-seven million, four hundred seventy thousand, five hundred forty-one".