40831091136 has 168 divisors, whose sum is σ = 133226031744. Its totient is φ = 11835056640.

The previous prime is 40831091047. The next prime is 40831091173. The reversal of 40831091136 is 63119013804.

40831091136 is a `hidden beast` number, since 408 + 31 + 0 + 91 + 136 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 40831091136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5635 + ... + 285821.

Almost surely, 2^40831091136 is an apocalyptic number.

40831091136 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40831091136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66613015872).

40831091136 is an abundant number, since it is smaller than the sum of its proper divisors (92394940608).

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

40831091136 is a wasteful number, since it uses less digits than its factorization.

40831091136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280239 (or 280226 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 40831091136 in words is "forty billion, eight hundred thirty-one million, ninety-one thousand, one hundred thirty-six".