40131754821788 has 24 divisors (see below), whose sum is σ = 80266242548352. Its totient is φ = 17198737872624.

The previous prime is 40131754821787. The next prime is 40131754821827. The reversal of 40131754821788 is 88712845713104.

It is a super-2 number, since 2×40131754821788² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40131754821787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23563406 + ... + 25209077.

It is an arithmetic number, because the mean of its divisors is an integer number (3344426772848).

Almost surely, 2^{40131754821788} is an apocalyptic number.

It is an amenable number.

40131754821788 is an abundant number, since it is smaller than the sum of its proper divisors (40134487726564).

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

40131754821788 is a wasteful number, since it uses less digits than its factorization.

40131754821788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48801881 (or 48801879 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 59.

The spelling of 40131754821788 in words is "forty trillion, one hundred thirty-one billion, seven hundred fifty-four million, eight hundred twenty-one thousand, seven hundred eighty-eight".