25349436015779 has 2 divisors, whose sum is σ = 25349436015780. Its totient is φ = 25349436015778.

The previous prime is 25349436015703. The next prime is 25349436015823. The reversal of 25349436015779 is 97751063494352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25349436015779 - 2²⁰ = 25349434967203 is a prime.

It is not a weakly prime, because it can be changed into another prime (25349436015679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12674718007889 + 12674718007890.

It is an arithmetic number, because the mean of its divisors is an integer number (12674718007890).

Almost surely, 2^{25349436015779} is an apocalyptic number.

25349436015779 is a deficient number, since it is larger than the sum of its proper divisors (1).

25349436015779 is an equidigital number, since it uses as much as digits as its factorization.

25349436015779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 171460800, while the sum is 65.

The spelling of 25349436015779 in words is "twenty-five trillion, three hundred forty-nine billion, four hundred thirty-six million, fifteen thousand, seven hundred seventy-nine".