40871987952 has 40 divisors (see below), whose sum is σ = 107578163664. Its totient is φ = 13366938624.

The previous prime is 40871987941. The next prime is 40871987953. The reversal of 40871987952 is 25978917804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40871987953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8030473 + ... + 8035560.

Almost surely, 2^40871987952 is an apocalyptic number.

It is an amenable number.

40871987952 is an abundant number, since it is smaller than the sum of its proper divisors (66706175712).

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

40871987952 is a wasteful number, since it uses less digits than its factorization.

40871987952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16066097 (or 16066091 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 60.

The spelling of 40871987952 in words is "forty billion, eight hundred seventy-one million, nine hundred eighty-seven thousand, nine hundred fifty-two".