40810433728 has 14 divisors (see below), whose sum is σ = 80983204556. Its totient is φ = 20405216832.

The previous prime is 40810433707. The next prime is 40810433779. The reversal of 40810433728 is 82733401804.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318831450 + ... + 318831577.

Almost surely, 2^40810433728 is an apocalyptic number.

It is an amenable number.

40810433728 is a deficient number, since it is larger than the sum of its proper divisors (40172770828).

40810433728 is an equidigital number, since it uses as much as digits as its factorization.

40810433728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637663039 (or 637663029 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 40810433728 in words is "forty billion, eight hundred ten million, four hundred thirty-three thousand, seven hundred twenty-eight".