76287678377 has 2 divisors, whose sum is σ = 76287678378. Its totient is φ = 76287678376.

The previous prime is 76287678349. The next prime is 76287678391. The reversal of 76287678377 is 77387678267.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40155751321 + 36131927056 = 200389^2 + 190084^2 .

It is a cyclic number.

It is not a de Polignac number, because 76287678377 - 2¹⁰ = 76287677353 is a prime.

It is not a weakly prime, because it can be changed into another prime (76287648377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38143839188 + 38143839189.

It is an arithmetic number, because the mean of its divisors is an integer number (38143839189).

Almost surely, 2^76287678377 is an apocalyptic number.

It is an amenable number.

76287678377 is a deficient number, since it is larger than the sum of its proper divisors (1).

76287678377 is an equidigital number, since it uses as much as digits as its factorization.

76287678377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 232339968, while the sum is 68.

The spelling of 76287678377 in words is "seventy-six billion, two hundred eighty-seven million, six hundred seventy-eight thousand, three hundred seventy-seven".