12701394557 has 2 divisors, whose sum is σ = 12701394558. Its totient is φ = 12701394556.

The previous prime is 12701394553. The next prime is 12701394571. The reversal of 12701394557 is 75549310721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12650400676 + 50993881 = 112474^2 + 7141^2 .

It is a cyclic number.

It is not a de Polignac number, because 12701394557 - 2² = 12701394553 is a prime.

It is a super-2 number, since 2×12701394557² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12701394553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6350697278 + 6350697279.

It is an arithmetic number, because the mean of its divisors is an integer number (6350697279).

Almost surely, 2^12701394557 is an apocalyptic number.

It is an amenable number.

12701394557 is a deficient number, since it is larger than the sum of its proper divisors (1).

12701394557 is an equidigital number, since it uses as much as digits as its factorization.

12701394557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 264600, while the sum is 44.

The spelling of 12701394557 in words is "twelve billion, seven hundred one million, three hundred ninety-four thousand, five hundred fifty-seven".