25770874291 has 2 divisors, whose sum is σ = 25770874292. Its totient is φ = 25770874290.

The previous prime is 25770874237. The next prime is 25770874313. The reversal of 25770874291 is 19247807752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25770874291 - 2²⁵ = 25737319859 is a prime.

It is not a weakly prime, because it can be changed into another prime (25770874201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12885437145 + 12885437146.

It is an arithmetic number, because the mean of its divisors is an integer number (12885437146).

Almost surely, 2^25770874291 is an apocalyptic number.

25770874291 is a deficient number, since it is larger than the sum of its proper divisors (1).

25770874291 is an equidigital number, since it uses as much as digits as its factorization.

25770874291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1975680, while the sum is 52.

The spelling of 25770874291 in words is "twenty-five billion, seven hundred seventy million, eight hundred seventy-four thousand, two hundred ninety-one".