891333739132 has 12 divisors (see below), whose sum is σ = 1560370273560. Its totient is φ = 445513660976.

The previous prime is 891333739117. The next prime is 891333739147. The reversal of 891333739132 is 231937333198.

It is a happy number.

891333739132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (891333739117) and next prime (891333739147).

It is a super-2 number, since 2×891333739132² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 891333739132.

It is a congruent number.

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, 38289058 + ... + 38312329.

It is an arithmetic number, because the mean of its divisors is an integer number (130030856130).

Almost surely, 2^891333739132 is an apocalyptic number.

It is an amenable number.

891333739132 is a deficient number, since it is larger than the sum of its proper divisors (669036534428).

891333739132 is a wasteful number, since it uses less digits than its factorization.

891333739132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76604300 (or 76604298 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 52.

The spelling of 891333739132 in words is "eight hundred ninety-one billion, three hundred thirty-three million, seven hundred thirty-nine thousand, one hundred thirty-two".