3117957457 has 2 divisors, whose sum is σ = 3117957458. Its totient is φ = 3117957456.

The previous prime is 3117957431. The next prime is 3117957473. The reversal of 3117957457 is 7547597113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2802220096 + 315737361 = 52936^2 + 17769^2 .

It is a cyclic number.

It is not a de Polignac number, because 3117957457 - 2¹⁹ = 3117433169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3117957457.

It is not a weakly prime, because it can be changed into another prime (3117957407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1558978728 + 1558978729.

It is an arithmetic number, because the mean of its divisors is an integer number (1558978729).

Almost surely, 2^3117957457 is an apocalyptic number.

It is an amenable number.

3117957457 is a deficient number, since it is larger than the sum of its proper divisors (1).

3117957457 is an equidigital number, since it uses as much as digits as its factorization.

3117957457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 926100, while the sum is 49.

The square root of 3117957457 is about 55838.6734889001. The cubic root of 3117957457 is about 1460.9097752799.

The spelling of 3117957457 in words is "three billion, one hundred seventeen million, nine hundred fifty-seven thousand, four hundred fifty-seven".