91385938682 has 16 divisors (see below), whose sum is σ = 140114437632. Its totient is φ = 44686671120.

The previous prime is 91385938577. The next prime is 91385938691. The reversal of 91385938682 is 28683958319.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1353098 + ... + 1419029.

It is an arithmetic number, because the mean of its divisors is an integer number (8757152352).

Almost surely, 2^91385938682 is an apocalyptic number.

91385938682 is a deficient number, since it is larger than the sum of its proper divisors (48728498950).

91385938682 is a wasteful number, since it uses less digits than its factorization.

91385938682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2772493.

The product of its digits is 22394880, while the sum is 62.

The spelling of 91385938682 in words is "ninety-one billion, three hundred eighty-five million, nine hundred thirty-eight thousand, six hundred eighty-two".