25461738462943 has 2 divisors, whose sum is σ = 25461738462944. Its totient is φ = 25461738462942.

The previous prime is 25461738462851. The next prime is 25461738463019. The reversal of 25461738462943 is 34926483716452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25461738462943 - 2²⁹ = 25461201592031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25461738466943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12730869231471 + 12730869231472.

It is an arithmetic number, because the mean of its divisors is an integer number (12730869231472).

Almost surely, 2^{25461738462943} is an apocalyptic number.

25461738462943 is a deficient number, since it is larger than the sum of its proper divisors (1).

25461738462943 is an equidigital number, since it uses as much as digits as its factorization.

25461738462943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209018880, while the sum is 64.

The spelling of 25461738462943 in words is "twenty-five trillion, four hundred sixty-one billion, seven hundred thirty-eight million, four hundred sixty-two thousand, nine hundred forty-three".