768838915 has 8 divisors (see below), whose sum is σ = 993576528. Its totient is φ = 567757920.

The previous prime is 768838913. The next prime is 768838921. The reversal of 768838915 is 519838867.

768838915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 768838915 - 2¹ = 768838913 is a prime.

It is a super-2 number, since 2×768838915² = 1182226554436754450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (768838913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5914081 + ... + 5914210.

It is an arithmetic number, because the mean of its divisors is an integer number (124197066).

Almost surely, 2^768838915 is an apocalyptic number.

768838915 is a deficient number, since it is larger than the sum of its proper divisors (224737613).

768838915 is a wasteful number, since it uses less digits than its factorization.

768838915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11828309.

The product of its digits is 2903040, while the sum is 55.

The square root of 768838915 is about 27727.9446587734. The cubic root of 768838915 is about 916.1047164375.

The spelling of 768838915 in words is "seven hundred sixty-eight million, eight hundred thirty-eight thousand, nine hundred fifteen".