91336627977 has 32 divisors (see below), whose sum is σ = 140231884800. Its totient is φ = 51798037248.

The previous prime is 91336627931. The next prime is 91336627999. The reversal of 91336627977 is 77972663319.

It is a happy number.

It is not a de Polignac number, because 91336627977 - 2⁷ = 91336627849 is a prime.

It is a super-2 number, since 2×91336627977² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 91336627977.

It is not an unprimeable number, because it can be changed into a prime (91336427977) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13590424 + ... + 13597142.

It is an arithmetic number, because the mean of its divisors is an integer number (4382246400).

Almost surely, 2^91336627977 is an apocalyptic number.

It is an amenable number.

91336627977 is a deficient number, since it is larger than the sum of its proper divisors (48895256823).

91336627977 is a wasteful number, since it uses less digits than its factorization.

91336627977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11525.

The product of its digits is 18003384, while the sum is 60.

The spelling of 91336627977 in words is "ninety-one billion, three hundred thirty-six million, six hundred twenty-seven thousand, nine hundred seventy-seven".