91757480002556 has 12 divisors (see below), whose sum is σ = 160591585252560. Its totient is φ = 45874169930400.

The previous prime is 91757480002541. The next prime is 91757480002567. The reversal of 91757480002556 is 65520008475719.

It is a junction number, because it is equal to n+sod(n) for n = 91757480002495 and 91757480002504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142472545 + ... + 1142552856.

It is an arithmetic number, because the mean of its divisors is an integer number (13382632104380).

Almost surely, 2^{91757480002556} is an apocalyptic number.

It is an amenable number.

91757480002556 is a deficient number, since it is larger than the sum of its proper divisors (68834105250004).

91757480002556 is a wasteful number, since it uses less digits than its factorization.

91757480002556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285035444 (or 2285035442 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 59.

The spelling of 91757480002556 in words is "ninety-one trillion, seven hundred fifty-seven billion, four hundred eighty million, two thousand, five hundred fifty-six".