6713149657 has 2 divisors, whose sum is σ = 6713149658. Its totient is φ = 6713149656.

The previous prime is 6713149631. The next prime is 6713149693. The reversal of 6713149657 is 7569413176.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6694348761 + 18800896 = 81819^2 + 4336^2 .

It is a cyclic number.

It is not a de Polignac number, because 6713149657 - 2⁷ = 6713149529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6713149657.

It is not a weakly prime, because it can be changed into another prime (6713140657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3356574828 + 3356574829.

It is an arithmetic number, because the mean of its divisors is an integer number (3356574829).

Almost surely, 2^6713149657 is an apocalyptic number.

It is an amenable number.

6713149657 is a deficient number, since it is larger than the sum of its proper divisors (1).

6713149657 is an equidigital number, since it uses as much as digits as its factorization.

6713149657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 49.

The square root of 6713149657 is about 81933.8126599757. The cubic root of 6713149657 is about 1886.4361474894.

The spelling of 6713149657 in words is "six billion, seven hundred thirteen million, one hundred forty-nine thousand, six hundred fifty-seven".