91190457315 has 80 divisors (see below), whose sum is σ = 165394253376. Its totient is φ = 48063456000.

The previous prime is 91190457251. The next prime is 91190457317. The reversal of 91190457315 is 51375409119.

91190457315 is a `hidden beast` number, since 9 + 1 + 190 + 457 + 3 + 1 + 5 = 666.

It is not a de Polignac number, because 91190457315 - 2⁶ = 91190457251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (91190457317) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 25809289 + ... + 25812821.

Almost surely, 2^91190457315 is an apocalyptic number.

91190457315 is a deficient number, since it is larger than the sum of its proper divisors (74203796061).

91190457315 is a wasteful number, since it uses less digits than its factorization.

91190457315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4282 (or 4273 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 45.

The spelling of 91190457315 in words is "ninety-one billion, one hundred ninety million, four hundred fifty-seven thousand, three hundred fifteen".