76932470777 has 2 divisors, whose sum is σ = 76932470778. Its totient is φ = 76932470776.

The previous prime is 76932470749. The next prime is 76932470789. The reversal of 76932470777 is 77707423967.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72546190336 + 4386280441 = 269344^2 + 66229^2 .

It is a cyclic number.

It is not a de Polignac number, because 76932470777 - 2¹⁰ = 76932469753 is a prime.

It is not a weakly prime, because it can be changed into another prime (76932470977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38466235388 + 38466235389.

It is an arithmetic number, because the mean of its divisors is an integer number (38466235389).

Almost surely, 2^76932470777 is an apocalyptic number.

It is an amenable number.

76932470777 is a deficient number, since it is larger than the sum of its proper divisors (1).

76932470777 is an equidigital number, since it uses as much as digits as its factorization.

76932470777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21781872, while the sum is 59.

The spelling of 76932470777 in words is "seventy-six billion, nine hundred thirty-two million, four hundred seventy thousand, seven hundred seventy-seven".