25961241830 has 16 divisors (see below), whose sum is σ = 47816985744. Its totient is φ = 10142996640.

The previous prime is 25961241811. The next prime is 25961241847. The reversal of 25961241830 is 3814216952.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30187061 + ... + 30187920.

It is an arithmetic number, because the mean of its divisors is an integer number (2988561609).

Almost surely, 2^25961241830 is an apocalyptic number.

25961241830 is a deficient number, since it is larger than the sum of its proper divisors (21855743914).

25961241830 is a wasteful number, since it uses less digits than its factorization.

25961241830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60375031.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 25961241830 in words is "twenty-five billion, nine hundred sixty-one million, two hundred forty-one thousand, eight hundred thirty".