12702945897457 has 2 divisors, whose sum is σ = 12702945897458. Its totient is φ = 12702945897456.

The previous prime is 12702945897419. The next prime is 12702945897487. The reversal of 12702945897457 is 75479854920721.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11238746675776 + 1464199221681 = 3352424^2 + 1210041^2 .

It is a cyclic number.

It is not a de Polignac number, because 12702945897457 - 2¹⁹ = 12702945373169 is a prime.

It is a super-2 number, since 2×12702945897457² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12702945897407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6351472948728 + 6351472948729.

It is an arithmetic number, because the mean of its divisors is an integer number (6351472948729).

Almost surely, 2^{12702945897457} is an apocalyptic number.

It is an amenable number.

12702945897457 is a deficient number, since it is larger than the sum of its proper divisors (1).

12702945897457 is an equidigital number, since it uses as much as digits as its factorization.

12702945897457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 355622400, while the sum is 70.

The spelling of 12702945897457 in words is "twelve trillion, seven hundred two billion, nine hundred forty-five million, eight hundred ninety-seven thousand, four hundred fifty-seven".