25641234711 has 36 divisors (see below), whose sum is σ = 39476796840. Its totient is φ = 16033917600.

The previous prime is 25641234701. The next prime is 25641234727. The reversal of 25641234711 is 11743214652.

25641234711 is a `hidden beast` number, since 2 + 5 + 64 + 123 + 471 + 1 = 666.

It is not a de Polignac number, because 25641234711 - 2⁵ = 25641234679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25641234701) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 289080 + ... + 367218.

It is an arithmetic number, because the mean of its divisors is an integer number (1096577690).

Almost surely, 2^25641234711 is an apocalyptic number.

25641234711 is a deficient number, since it is larger than the sum of its proper divisors (13835562129).

25641234711 is a wasteful number, since it uses less digits than its factorization.

25641234711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78284 (or 78262 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The spelling of 25641234711 in words is "twenty-five billion, six hundred forty-one million, two hundred thirty-four thousand, seven hundred eleven".