40815544452 has 24 divisors (see below), whose sum is σ = 95248771296. Its totient is φ = 13603395648.

The previous prime is 40815544421. The next prime is 40815544589. The reversal of 40815544452 is 25444551804.

It is a happy number.

It is an unprimeable number.

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, 126318 + ... + 312389.

It is an arithmetic number, because the mean of its divisors is an integer number (3968698804).

Almost surely, 2^40815544452 is an apocalyptic number.

It is an amenable number.

40815544452 is an abundant number, since it is smaller than the sum of its proper divisors (54433226844).

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

40815544452 is a wasteful number, since it uses less digits than its factorization.

40815544452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446467 (or 446465 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 42.

The spelling of 40815544452 in words is "forty billion, eight hundred fifteen million, five hundred forty-four thousand, four hundred fifty-two".