91629999884 has 12 divisors (see below), whose sum is σ = 160414406208. Its totient is φ = 45797312400.

The previous prime is 91629999869. The next prime is 91629999893. The reversal of 91629999884 is 48899992619.

It is a super-4 number, since 4×91629999884⁴ (a number of 45 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4410227 + ... + 4430954.

It is an arithmetic number, because the mean of its divisors is an integer number (13367867184).

Almost surely, 2^91629999884 is an apocalyptic number.

It is an amenable number.

91629999884 is a deficient number, since it is larger than the sum of its proper divisors (68784406324).

91629999884 is a wasteful number, since it uses less digits than its factorization.

91629999884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8843776 (or 8843774 counting only the distinct ones).

The product of its digits is 181398528, while the sum is 74.

The spelling of 91629999884 in words is "ninety-one billion, six hundred twenty-nine million, nine hundred ninety-nine thousand, eight hundred eighty-four".