765693391016 has 8 divisors (see below), whose sum is σ = 1435675108170. Its totient is φ = 382846695504.

The previous prime is 765693390967. The next prime is 765693391093. The reversal of 765693391016 is 610193396567.

It can be written as a sum of positive squares in only one way, i.e., 667439980900 + 98253410116 = 816970^2 + 313454^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47855836931 + ... + 47855836946.

Almost surely, 2^765693391016 is an apocalyptic number.

It is an amenable number.

765693391016 is a deficient number, since it is larger than the sum of its proper divisors (669981717154).

765693391016 is a wasteful number, since it uses less digits than its factorization.

765693391016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95711673883 (or 95711673879 counting only the distinct ones).

The product of its (nonzero) digits is 5511240, while the sum is 56.

The spelling of 765693391016 in words is "seven hundred sixty-five billion, six hundred ninety-three million, three hundred ninety-one thousand, sixteen".