91625968982 has 8 divisors (see below), whose sum is σ = 137516302056. Its totient is φ = 45787201632.

The previous prime is 91625968937. The next prime is 91625969003. The reversal of 91625968982 is 28986952619.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×91625968982² (a number of 23 digits) contains 22 as substring.

It is a plaindrome in base 4 and base 16.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 12886988 + ... + 12894095.

It is an arithmetic number, because the mean of its divisors is an integer number (17189537757).

Almost surely, 2^91625968982 is an apocalyptic number.

91625968982 is a deficient number, since it is larger than the sum of its proper divisors (45890333074).

91625968982 is a wasteful number, since it uses less digits than its factorization.

91625968982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25782862.

The product of its digits is 33592320, while the sum is 65.

The spelling of 91625968982 in words is "ninety-one billion, six hundred twenty-five million, nine hundred sixty-eight thousand, nine hundred eighty-two".