25738726831 has 2 divisors, whose sum is σ = 25738726832. Its totient is φ = 25738726830.

The previous prime is 25738726781. The next prime is 25738726837. The reversal of 25738726831 is 13862783752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25738726831 - 2⁹ = 25738726319 is a prime.

It is a super-2 number, since 2×25738726831² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25738726837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12869363415 + 12869363416.

It is an arithmetic number, because the mean of its divisors is an integer number (12869363416).

Almost surely, 2^25738726831 is an apocalyptic number.

25738726831 is a deficient number, since it is larger than the sum of its proper divisors (1).

25738726831 is an equidigital number, since it uses as much as digits as its factorization.

25738726831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386880, while the sum is 52.

The spelling of 25738726831 in words is "twenty-five billion, seven hundred thirty-eight million, seven hundred twenty-six thousand, eight hundred thirty-one".