77647310327 has 2 divisors, whose sum is σ = 77647310328. Its totient is φ = 77647310326.

The previous prime is 77647310281. The next prime is 77647310333. The reversal of 77647310327 is 72301374677.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77647310327 - 2¹⁶ = 77647244791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77647310227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38823655163 + 38823655164.

It is an arithmetic number, because the mean of its divisors is an integer number (38823655164).

Almost surely, 2^77647310327 is an apocalyptic number.

77647310327 is a deficient number, since it is larger than the sum of its proper divisors (1).

77647310327 is an equidigital number, since it uses as much as digits as its factorization.

77647310327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1037232, while the sum is 47.

The spelling of 77647310327 in words is "seventy-seven billion, six hundred forty-seven million, three hundred ten thousand, three hundred twenty-seven".