765980351 has 4 divisors (see below), whose sum is σ = 766041672. Its totient is φ = 765919032.

The previous prime is 765980323. The next prime is 765980359. The reversal of 765980351 is 153089567.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 153089567 = 1033 ⋅148199.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-765980351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (765980359) 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, 4460 + ... + 39393.

It is an arithmetic number, because the mean of its divisors is an integer number (191510418).

Almost surely, 2^765980351 is an apocalyptic number.

765980351 is a deficient number, since it is larger than the sum of its proper divisors (61321).

765980351 is a wasteful number, since it uses less digits than its factorization.

765980351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61320.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 765980351 is about 27676.3500303057. The cubic root of 765980351 is about 914.9679389963.

The spelling of 765980351 in words is "seven hundred sixty-five million, nine hundred eighty thousand, three hundred fifty-one".