813737932511168 has 112 divisors (see below), whose sum is σ = 1888630758330624. Its totient is φ = 340585394042880.

The previous prime is 813737932511167. The next prime is 813737932511183. The reversal of 813737932511168 is 861115239737318.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813737932511167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130786748 + ... + 136867268.

It is an arithmetic number, because the mean of its divisors is an integer number (16862774627952).

Almost surely, 2^{813737932511168} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 813737932511168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (944315379165312).

813737932511168 is an abundant number, since it is smaller than the sum of its proper divisors (1074892825819456).

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

813737932511168 is a wasteful number, since it uses less digits than its factorization.

813737932511168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6087530 (or 6087520 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 65.

The spelling of 813737932511168 in words is "eight hundred thirteen trillion, seven hundred thirty-seven billion, nine hundred thirty-two million, five hundred eleven thousand, one hundred sixty-eight".