39536392745972 has 6 divisors (see below), whose sum is σ = 69188687305458. Its totient is φ = 19768196372984.

The previous prime is 39536392745947. The next prime is 39536392745987. The reversal of 39536392745972 is 27954729363593.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 39365158995556 + 171233750416 = 6274166^2 + 413804^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 39536392745972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4942049093243 + ... + 4942049093250.

It is an arithmetic number, because the mean of its divisors is an integer number (11531447884243).

Almost surely, 2^{39536392745972} is an apocalyptic number.

It is an amenable number.

39536392745972 is a deficient number, since it is larger than the sum of its proper divisors (29652294559486).

39536392745972 is a wasteful number, since it uses less digits than its factorization.

39536392745972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9884098186497 (or 9884098186495 counting only the distinct ones).

The product of its digits is 2314720800, while the sum is 74.

The spelling of 39536392745972 in words is "thirty-nine trillion, five hundred thirty-six billion, three hundred ninety-two million, seven hundred forty-five thousand, nine hundred seventy-two".