811140368148 has 72 divisors (see below), whose sum is σ = 2248021339200. Its totient is φ = 244564911360.

The previous prime is 811140368141. The next prime is 811140368177. The reversal of 811140368148 is 841863041118.

811140368148 is a `hidden beast` number, since 8 + 1 + 1 + 140 + 368 + 148 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811140368141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5067765 + ... + 5225372.

It is an arithmetic number, because the mean of its divisors is an integer number (31222518600).

Almost surely, 2^811140368148 is an apocalyptic number.

It is an amenable number.

811140368148 is an abundant number, since it is smaller than the sum of its proper divisors (1436880971052).

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

811140368148 is a wasteful number, since it uses less digits than its factorization.

811140368148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10293357 (or 10293352 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The spelling of 811140368148 in words is "eight hundred eleven billion, one hundred forty million, three hundred sixty-eight thousand, one hundred forty-eight".