25768284426 has 12 divisors (see below), whose sum is σ = 55831282962. Its totient is φ = 8589428136.

The previous prime is 25768284419. The next prime is 25768284427. The reversal of 25768284426 is 62448286752.

25768284426 is a `hidden beast` number, since 2 + 576 + 8 + 2 + 8 + 44 + 26 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14627693025 + 11140591401 = 120945^2 + 105549^2 .

It is not an unprimeable number, because it can be changed into a prime (25768284427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 715785661 + ... + 715785696.

Almost surely, 2^25768284426 is an apocalyptic number.

25768284426 is an abundant number, since it is smaller than the sum of its proper divisors (30062998536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25768284426 is a wasteful number, since it uses less digits than its factorization.

25768284426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431571365 (or 1431571362 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 54.

The spelling of 25768284426 in words is "twenty-five billion, seven hundred sixty-eight million, two hundred eighty-four thousand, four hundred twenty-six".