891943013106 has 24 divisors (see below), whose sum is σ = 1942254475200. Its totient is φ = 295820294616.

The previous prime is 891943013081. The next prime is 891943013167. The reversal of 891943013106 is 601310349198.

891943013106 is a `hidden beast` number, since 89 + 1 + 9 + 430 + 131 + 0 + 6 = 666.

It is a super-2 number, since 2×891943013106² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124499910 + ... + 124507073.

It is an arithmetic number, because the mean of its divisors is an integer number (80927269800).

Almost surely, 2^891943013106 is an apocalyptic number.

891943013106 is an abundant number, since it is smaller than the sum of its proper divisors (1050311462094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

891943013106 is a wasteful number, since it uses less digits than its factorization.

891943013106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249007190 (or 249007187 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 891943013106 in words is "eight hundred ninety-one billion, nine hundred forty-three million, thirteen thousand, one hundred six".