39972193177 has 32 divisors (see below), whose sum is σ = 48743424000. Its totient is φ = 31997991168.

The previous prime is 39972193171. The next prime is 39972193213. The reversal of 39972193177 is 77139127993.

It is a cyclic number.

It is not a de Polignac number, because 39972193177 - 2⁷ = 39972193049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39972193171) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 16660824 + ... + 16663222.

It is an arithmetic number, because the mean of its divisors is an integer number (1523232000).

Almost surely, 2^39972193177 is an apocalyptic number.

It is an amenable number.

39972193177 is a deficient number, since it is larger than the sum of its proper divisors (8771230823).

39972193177 is a wasteful number, since it uses less digits than its factorization.

39972193177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445.

The product of its digits is 4500846, while the sum is 58.

The spelling of 39972193177 in words is "thirty-nine billion, nine hundred seventy-two million, one hundred ninety-three thousand, one hundred seventy-seven".