40131787554 has 16 divisors (see below), whose sum is σ = 89181750240. Its totient is φ = 13377262500.

The previous prime is 40131787541. The next prime is 40131787573. The reversal of 40131787554 is 45578713104.

40131787554 is a `hidden beast` number, since 4 + 0 + 1 + 3 + 17 + 87 + 554 = 666.

It is a super-2 number, since 2×40131787554² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371590572 + ... + 371590679.

It is an arithmetic number, because the mean of its divisors is an integer number (5573859390).

Almost surely, 2^40131787554 is an apocalyptic number.

40131787554 is an abundant number, since it is smaller than the sum of its proper divisors (49049962686).

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

40131787554 is a wasteful number, since it uses less digits than its factorization.

40131787554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743181262 (or 743181256 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 40131787554 in words is "forty billion, one hundred thirty-one million, seven hundred eighty-seven thousand, five hundred fifty-four".