768645449427 has 16 divisors (see below), whose sum is σ = 1035527213952. Its totient is φ = 507098023680.

The previous prime is 768645449423. The next prime is 768645449431. The reversal of 768645449427 is 724944546867.

It is an interprime number because it is at equal distance from previous prime (768645449423) and next prime (768645449431).

It is not a de Polignac number, because 768645449427 - 2² = 768645449423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (768645449423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2987548 + ... + 3234614.

It is an arithmetic number, because the mean of its divisors is an integer number (64720450872).

Almost surely, 2^768645449427 is an apocalyptic number.

768645449427 is a deficient number, since it is larger than the sum of its proper divisors (266881764525).

768645449427 is a wasteful number, since it uses less digits than its factorization.

768645449427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257858.

The product of its digits is 325140480, while the sum is 66.

The spelling of 768645449427 in words is "seven hundred sixty-eight billion, six hundred forty-five million, four hundred forty-nine thousand, four hundred twenty-seven".