40137808080 has 80 divisors (see below), whose sum is σ = 126002292480. Its totient is φ = 10567924224.

The previous prime is 40137808057. The next prime is 40137808097. The reversal of 40137808080 is 8080873104.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×40137808080² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1039527 + ... + 1077446.

It is an arithmetic number, because the mean of its divisors is an integer number (1575028656).

Almost surely, 2^40137808080 is an apocalyptic number.

40137808080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40137808080 is an abundant number, since it is smaller than the sum of its proper divisors (85864484400).

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

40137808080 is a wasteful number, since it uses less digits than its factorization.

40137808080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117068 (or 2117062 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The spelling of 40137808080 in words is "forty billion, one hundred thirty-seven million, eight hundred eight thousand, eighty".