768877210509 has 16 divisors (see below), whose sum is σ = 1038817272960. Its totient is φ = 505784632320.

The previous prime is 768877210483. The next prime is 768877210537. The reversal of 768877210509 is 905012778867.

It is not a de Polignac number, because 768877210509 - 2²³ = 768868821901 is a prime.

It is a super-2 number, since 2×768877210509² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768877210109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2826532 + ... + 3086589.

It is an arithmetic number, because the mean of its divisors is an integer number (64926079560).

Almost surely, 2^768877210509 is an apocalyptic number.

It is an amenable number.

768877210509 is a deficient number, since it is larger than the sum of its proper divisors (269940062451).

768877210509 is a wasteful number, since it uses less digits than its factorization.

768877210509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5913700.

The product of its (nonzero) digits is 11854080, while the sum is 60.

The spelling of 768877210509 in words is "seven hundred sixty-eight billion, eight hundred seventy-seven million, two hundred ten thousand, five hundred nine".