91004590955 has 8 divisors (see below), whose sum is σ = 109213464192. Its totient is φ = 72798369408.

The previous prime is 91004590949. The next prime is 91004590967. The reversal of 91004590955 is 55909540019.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91004590955 - 2⁴ = 91004590939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586619 + ... + 725348.

It is an arithmetic number, because the mean of its divisors is an integer number (13651683024).

Almost surely, 2^91004590955 is an apocalyptic number.

91004590955 is a deficient number, since it is larger than the sum of its proper divisors (18208873237).

91004590955 is a wasteful number, since it uses less digits than its factorization.

91004590955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325845.

The product of its (nonzero) digits is 364500, while the sum is 47.

The spelling of 91004590955 in words is "ninety-one billion, four million, five hundred ninety thousand, nine hundred fifty-five".