12942653461 has 2 divisors, whose sum is σ = 12942653462. Its totient is φ = 12942653460.

The previous prime is 12942653443. The next prime is 12942653489. The reversal of 12942653461 is 16435624921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7219730961 + 5722922500 = 84969^2 + 75650^2 .

It is a cyclic number.

It is not a de Polignac number, because 12942653461 - 2¹⁷ = 12942522389 is a prime.

It is a super-2 number, since 2×12942653461² (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 (12942653441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6471326730 + 6471326731.

It is an arithmetic number, because the mean of its divisors is an integer number (6471326731).

Almost surely, 2^12942653461 is an apocalyptic number.

It is an amenable number.

12942653461 is a deficient number, since it is larger than the sum of its proper divisors (1).

12942653461 is an equidigital number, since it uses as much as digits as its factorization.

12942653461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 43.

The spelling of 12942653461 in words is "twelve billion, nine hundred forty-two million, six hundred fifty-three thousand, four hundred sixty-one".