40747720072 has 16 divisors (see below), whose sum is σ = 76405570560. Its totient is φ = 20372901264.

The previous prime is 40747720063. The next prime is 40747720141. The reversal of 40747720072 is 27002774704.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80473 + ... + 296599.

It is an arithmetic number, because the mean of its divisors is an integer number (4775348160).

Almost surely, 2^40747720072 is an apocalyptic number.

It is an amenable number.

40747720072 is a deficient number, since it is larger than the sum of its proper divisors (35657850488).

40747720072 is a wasteful number, since it uses less digits than its factorization.

40747720072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239700 (or 239696 counting only the distinct ones).

The product of its (nonzero) digits is 153664, while the sum is 40.

The spelling of 40747720072 in words is "forty billion, seven hundred forty-seven million, seven hundred twenty thousand, seventy-two".