765865559380 has 48 divisors (see below), whose sum is σ = 1676477658240. Its totient is φ = 293524649600.

The previous prime is 765865559377. The next prime is 765865559411. The reversal of 765865559380 is 83955568567.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4963936 + ... + 5115895.

It is an arithmetic number, because the mean of its divisors is an integer number (34926617880).

Almost surely, 2^765865559380 is an apocalyptic number.

It is an amenable number.

765865559380 is an abundant number, since it is smaller than the sum of its proper divisors (910612098860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

765865559380 is a wasteful number, since it uses less digits than its factorization.

765865559380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10080000 (or 10079998 counting only the distinct ones).

The product of its (nonzero) digits is 272160000, while the sum is 67.

The spelling of 765865559380 in words is "seven hundred sixty-five billion, eight hundred sixty-five million, five hundred fifty-nine thousand, three hundred eighty".