40537812944 has 20 divisors (see below), whose sum is σ = 83162131524. Its totient is φ = 19076617728.

The previous prime is 40537812929. The next prime is 40537812989. The reversal of 40537812944 is 44921873504.

It can be written as a sum of positive squares in 2 ways, for example, as 33109441600 + 7428371344 = 181960^2 + 86188^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74517767 + ... + 74518310.

Almost surely, 2^40537812944 is an apocalyptic number.

It is an amenable number.

40537812944 is an abundant number, since it is smaller than the sum of its proper divisors (42624318580).

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

40537812944 is a wasteful number, since it uses less digits than its factorization.

40537812944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149036102 (or 149036096 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 40537812944 in words is "forty billion, five hundred thirty-seven million, eight hundred twelve thousand, nine hundred forty-four".