25461982487242 has 32 divisors (see below), whose sum is σ = 45976682419200. Its totient is φ = 10560269225520.

The previous prime is 25461982487239. The next prime is 25461982487243. The reversal of 25461982487242 is 24278428916452.

It is not an unprimeable number, because it can be changed into a prime (25461982487243) 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, 598633453 + ... + 598675984.

It is an arithmetic number, because the mean of its divisors is an integer number (1436771325600).

Almost surely, 2^{25461982487242} is an apocalyptic number.

25461982487242 is a deficient number, since it is larger than the sum of its proper divisors (20514699931958).

25461982487242 is a wasteful number, since it uses less digits than its factorization.

25461982487242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197309491 (or 1197309477 counting only the distinct ones).

The product of its digits is 123863040, while the sum is 64.

The spelling of 25461982487242 in words is "twenty-five trillion, four hundred sixty-one billion, nine hundred eighty-two million, four hundred eighty-seven thousand, two hundred forty-two".