765865852963 has 4 divisors (see below), whose sum is σ = 765905746480. Its totient is φ = 765825959448.

The previous prime is 765865852933. The next prime is 765865852979. The reversal of 765865852963 is 369258568567.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 369258568567 = 7 ⋅52751224081.

It is a cyclic number.

It is not a de Polignac number, because 765865852963 - 2⁵ = 765865852931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 765865852892 and 765865852901.

It is not an unprimeable number, because it can be changed into a prime (765865852903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19917948 + ... + 19956361.

It is an arithmetic number, because the mean of its divisors is an integer number (191476436620).

Almost surely, 2^765865852963 is an apocalyptic number.

765865852963 is a deficient number, since it is larger than the sum of its proper divisors (39893517).

765865852963 is a wasteful number, since it uses less digits than its factorization.

765865852963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39893516.

The product of its digits is 653184000, while the sum is 70.

The spelling of 765865852963 in words is "seven hundred sixty-five billion, eight hundred sixty-five million, eight hundred fifty-two thousand, nine hundred sixty-three".