765732072136 has 8 divisors (see below), whose sum is σ = 1435747635270. Its totient is φ = 382866036064.

The previous prime is 765732072121. The next prime is 765732072169. The reversal of 765732072136 is 631270237567.

It can be written as a sum of positive squares in only one way, i.e., 477356628100 + 288375444036 = 690910^2 + 537006^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 765732072136.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47858254501 + ... + 47858254516.

Almost surely, 2^765732072136 is an apocalyptic number.

It is an amenable number.

765732072136 is a deficient number, since it is larger than the sum of its proper divisors (670015563134).

765732072136 is a wasteful number, since it uses less digits than its factorization.

765732072136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95716509023 (or 95716509019 counting only the distinct ones).

The product of its (nonzero) digits is 2222640, while the sum is 49.

The spelling of 765732072136 in words is "seven hundred sixty-five billion, seven hundred thirty-two million, seventy-two thousand, one hundred thirty-six".