71872752356 has 6 divisors (see below), whose sum is σ = 125777316630. Its totient is φ = 35936376176.

The previous prime is 71872752317. The next prime is 71872752383. The reversal of 71872752356 is 65325727817.

It can be written as a sum of positive squares in only one way, i.e., 57696040000 + 14176712356 = 240200^2 + 119066^2 .

It is a junction number, because it is equal to n+sod(n) for n = 71872752298 and 71872752307.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8984094041 + ... + 8984094048.

It is an arithmetic number, because the mean of its divisors is an integer number (20962886105).

Almost surely, 2^71872752356 is an apocalyptic number.

It is an amenable number.

71872752356 is a deficient number, since it is larger than the sum of its proper divisors (53904564274).

71872752356 is a wasteful number, since it uses less digits than its factorization.

71872752356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17968188093 (or 17968188091 counting only the distinct ones).

The product of its digits is 4939200, while the sum is 53.

The spelling of 71872752356 in words is "seventy-one billion, eight hundred seventy-two million, seven hundred fifty-two thousand, three hundred fifty-six".