25939982741 has 2 divisors, whose sum is σ = 25939982742. Its totient is φ = 25939982740.

The previous prime is 25939982711. The next prime is 25939982753. The reversal of 25939982741 is 14728993952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18733670641 + 7206312100 = 136871^2 + 84890^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25939982741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25939982701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12969991370 + 12969991371.

It is an arithmetic number, because the mean of its divisors is an integer number (12969991371).

Almost surely, 2^25939982741 is an apocalyptic number.

It is an amenable number.

25939982741 is a deficient number, since it is larger than the sum of its proper divisors (1).

25939982741 is an equidigital number, since it uses as much as digits as its factorization.

25939982741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9797760, while the sum is 59.

The spelling of 25939982741 in words is "twenty-five billion, nine hundred thirty-nine million, nine hundred eighty-two thousand, seven hundred forty-one".