91443855082 has 16 divisors (see below), whose sum is σ = 145021105440. Its totient is φ = 43124689008.

The previous prime is 91443855071. The next prime is 91443855119. The reversal of 91443855082 is 28055834419.

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, 5291853 + ... + 5309104.

It is an arithmetic number, because the mean of its divisors is an integer number (9063819090).

Almost surely, 2^91443855082 is an apocalyptic number.

91443855082 is a deficient number, since it is larger than the sum of its proper divisors (53577250358).

91443855082 is a wasteful number, since it uses less digits than its factorization.

91443855082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10601205.

The product of its (nonzero) digits is 1382400, while the sum is 49.

The spelling of 91443855082 in words is "ninety-one billion, four hundred forty-three million, eight hundred fifty-five thousand, eighty-two".