12445893461 has 2 divisors, whose sum is σ = 12445893462. Its totient is φ = 12445893460.

The previous prime is 12445893407. The next prime is 12445893503. The reversal of 12445893461 is 16439854421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6378418225 + 6067475236 = 79865^2 + 77894^2 .

It is an emirp because it is prime and its reverse (16439854421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12445893461 - 2²⁶ = 12378784597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12445893961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222946730 + 6222946731.

It is an arithmetic number, because the mean of its divisors is an integer number (6222946731).

Almost surely, 2^12445893461 is an apocalyptic number.

It is an amenable number.

12445893461 is a deficient number, since it is larger than the sum of its proper divisors (1).

12445893461 is an equidigital number, since it uses as much as digits as its factorization.

12445893461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 47.

The spelling of 12445893461 in words is "twelve billion, four hundred forty-five million, eight hundred ninety-three thousand, four hundred sixty-one".