25403841611 has 2 divisors, whose sum is σ = 25403841612. Its totient is φ = 25403841610.

The previous prime is 25403841587. The next prime is 25403841641. The reversal of 25403841611 is 11614830452.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25403841611 is a prime.

It is not a weakly prime, because it can be changed into another prime (25403841641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12701920805 + 12701920806.

It is an arithmetic number, because the mean of its divisors is an integer number (12701920806).

Almost surely, 2^25403841611 is an apocalyptic number.

25403841611 is a deficient number, since it is larger than the sum of its proper divisors (1).

25403841611 is an equidigital number, since it uses as much as digits as its factorization.

25403841611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 25403841611 in words is "twenty-five billion, four hundred three million, eight hundred forty-one thousand, six hundred eleven".