7714664857 has 2 divisors, whose sum is σ = 7714664858. Its totient is φ = 7714664856.

The previous prime is 7714664851. The next prime is 7714664927. The reversal of 7714664857 is 7584664177.

7714664857 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7703748441 + 10916416 = 87771^2 + 3304^2 .

It is a cyclic number.

It is not a de Polignac number, because 7714664857 - 2³ = 7714664849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7714664798 and 7714664807.

It is not a weakly prime, because it can be changed into another prime (7714664851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3857332428 + 3857332429.

It is an arithmetic number, because the mean of its divisors is an integer number (3857332429).

Almost surely, 2^7714664857 is an apocalyptic number.

It is an amenable number.

7714664857 is a deficient number, since it is larger than the sum of its proper divisors (1).

7714664857 is an equidigital number, since it uses as much as digits as its factorization.

7714664857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7902720, while the sum is 55.

The square root of 7714664857 is about 87833.1649036968. The cubic root of 7714664857 is about 1975.9336381120.

The spelling of 7714664857 in words is "seven billion, seven hundred fourteen million, six hundred sixty-four thousand, eight hundred fifty-seven".