91056808315 has 16 divisors (see below), whose sum is σ = 119584947456. Its totient is φ = 66010184800.

The previous prime is 91056808313. The next prime is 91056808327. The reversal of 91056808315 is 51380865019.

It is not a de Polignac number, because 91056808315 - 2¹ = 91056808313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91056808313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2644597 + ... + 2678806.

It is an arithmetic number, because the mean of its divisors is an integer number (7474059216).

Almost surely, 2^91056808315 is an apocalyptic number.

91056808315 is a deficient number, since it is larger than the sum of its proper divisors (28528139141).

91056808315 is a wasteful number, since it uses less digits than its factorization.

91056808315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5323730.

The product of its (nonzero) digits is 259200, while the sum is 46.

The spelling of 91056808315 in words is "ninety-one billion, fifty-six million, eight hundred eight thousand, three hundred fifteen".