76843968378 has 32 divisors (see below), whose sum is σ = 165486525120. Its totient is φ = 23699301120.

The previous prime is 76843968349. The next prime is 76843968389. The reversal of 76843968378 is 87386934867.

It is an unprimeable number.

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, 6378493 + ... + 6390528.

It is an arithmetic number, because the mean of its divisors is an integer number (5171453910).

Almost surely, 2^76843968378 is an apocalyptic number.

76843968378 is an abundant number, since it is smaller than the sum of its proper divisors (88642556742).

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

76843968378 is a wasteful number, since it uses less digits than its factorization.

76843968378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12769102.

The product of its digits is 292626432, while the sum is 69.

The spelling of 76843968378 in words is "seventy-six billion, eight hundred forty-three million, nine hundred sixty-eight thousand, three hundred seventy-eight".