25469396511 has 16 divisors (see below), whose sum is σ = 36599199840. Its totient is φ = 15661578240.

The previous prime is 25469396509. The next prime is 25469396531. The reversal of 25469396511 is 11569396452.

It is not a de Polignac number, because 25469396511 - 2¹ = 25469396509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25469396531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195666 + ... + 298703.

It is an arithmetic number, because the mean of its divisors is an integer number (2287449990).

Almost surely, 2^25469396511 is an apocalyptic number.

25469396511 is a deficient number, since it is larger than the sum of its proper divisors (11129803329).

25469396511 is a wasteful number, since it uses less digits than its factorization.

25469396511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495706.

The product of its digits is 1749600, while the sum is 51.

The spelling of 25469396511 in words is "twenty-five billion, four hundred sixty-nine million, three hundred ninety-six thousand, five hundred eleven".