25379014695809 has 2 divisors, whose sum is σ = 25379014695810. Its totient is φ = 25379014695808.

The previous prime is 25379014695757. The next prime is 25379014695841. The reversal of 25379014695809 is 90859641097352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24811885209409 + 567129486400 = 4981153^2 + 753080^2 .

It is a cyclic number.

It is not a de Polignac number, because 25379014695809 - 2⁸ = 25379014695553 is a prime.

It is not a weakly prime, because it can be changed into another prime (25379014695509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12689507347904 + 12689507347905.

It is an arithmetic number, because the mean of its divisors is an integer number (12689507347905).

It is a 1-persistent number, because it is pandigital, but 2⋅25379014695809 = 50758029391618 is not.

Almost surely, 2^{25379014695809} is an apocalyptic number.

It is an amenable number.

25379014695809 is a deficient number, since it is larger than the sum of its proper divisors (1).

25379014695809 is an equidigital number, since it uses as much as digits as its factorization.

25379014695809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 146966400, while the sum is 68.

The spelling of 25379014695809 in words is "twenty-five trillion, three hundred seventy-nine billion, fourteen million, six hundred ninety-five thousand, eight hundred nine".