90603609971 has 16 divisors (see below), whose sum is σ = 105993093888. Its totient is φ = 75826951200.

The previous prime is 90603609961. The next prime is 90603609983. The reversal of 90603609971 is 17990630609.

It is not a de Polignac number, because 90603609971 - 2¹⁰ = 90603608947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90603609961) 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, 808556 + ... + 913766.

It is an arithmetic number, because the mean of its divisors is an integer number (6624568368).

Almost surely, 2^90603609971 is an apocalyptic number.

90603609971 is a deficient number, since it is larger than the sum of its proper divisors (15389483917).

90603609971 is a wasteful number, since it uses less digits than its factorization.

90603609971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108122.

The product of its (nonzero) digits is 551124, while the sum is 50.

The spelling of 90603609971 in words is "ninety billion, six hundred three million, six hundred nine thousand, nine hundred seventy-one".