25758609827 has 2 divisors, whose sum is σ = 25758609828. Its totient is φ = 25758609826.

The previous prime is 25758609781. The next prime is 25758609847. The reversal of 25758609827 is 72890685752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25758609827 - 2¹⁰ = 25758608803 is a prime.

It is not a weakly prime, because it can be changed into another prime (25758609847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12879304913 + 12879304914.

It is an arithmetic number, because the mean of its divisors is an integer number (12879304914).

Almost surely, 2^25758609827 is an apocalyptic number.

25758609827 is a deficient number, since it is larger than the sum of its proper divisors (1).

25758609827 is an equidigital number, since it uses as much as digits as its factorization.

25758609827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16934400, while the sum is 59.

The spelling of 25758609827 in words is "twenty-five billion, seven hundred fifty-eight million, six hundred nine thousand, eight hundred twenty-seven".