91339127956 has 24 divisors (see below), whose sum is σ = 168755612480. Its totient is φ = 43137505152.

The previous prime is 91339127953. The next prime is 91339128037. The reversal of 91339127956 is 65972193319.

It is a junction number, because it is equal to n+sod(n) for n = 91339127897 and 91339127906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91339127953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1757520 + ... + 1808743.

Almost surely, 2^91339127956 is an apocalyptic number.

It is an amenable number.

91339127956 is a deficient number, since it is larger than the sum of its proper divisors (77416484524).

91339127956 is a wasteful number, since it uses less digits than its factorization.

91339127956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3566623 (or 3566621 counting only the distinct ones).

The product of its digits is 2755620, while the sum is 55.

The spelling of 91339127956 in words is "ninety-one billion, three hundred thirty-nine million, one hundred twenty-seven thousand, nine hundred fifty-six".