25726466587 has 2 divisors, whose sum is σ = 25726466588. Its totient is φ = 25726466586.

The previous prime is 25726466551. The next prime is 25726466611. The reversal of 25726466587 is 78566462752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25726466587 - 2⁷ = 25726466459 is a prime.

It is not a weakly prime, because it can be changed into another prime (25726464587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12863233293 + 12863233294.

It is an arithmetic number, because the mean of its divisors is an integer number (12863233294).

Almost surely, 2^25726466587 is an apocalyptic number.

25726466587 is a deficient number, since it is larger than the sum of its proper divisors (1).

25726466587 is an equidigital number, since it uses as much as digits as its factorization.

25726466587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33868800, while the sum is 58.

The spelling of 25726466587 in words is "twenty-five billion, seven hundred twenty-six million, four hundred sixty-six thousand, five hundred eighty-seven".