768125964509 has 4 divisors (see below), whose sum is σ = 770840190816. Its totient is φ = 765411738204.

The previous prime is 768125964499. The next prime is 768125964523. The reversal of 768125964509 is 905469521867.

768125964509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 768125964509 - 2³² = 763830997213 is a prime.

It is a super-2 number, since 2×768125964509² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768125963509) 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, 1357112729 + ... + 1357113294.

It is an arithmetic number, because the mean of its divisors is an integer number (192710047704).

Almost surely, 2^768125964509 is an apocalyptic number.

It is an amenable number.

768125964509 is a deficient number, since it is larger than the sum of its proper divisors (2714226307).

768125964509 is a wasteful number, since it uses less digits than its factorization.

768125964509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2714226306.

The product of its (nonzero) digits is 32659200, while the sum is 62.

The spelling of 768125964509 in words is "seven hundred sixty-eight billion, one hundred twenty-five million, nine hundred sixty-four thousand, five hundred nine".