25841884961 has 16 divisors (see below), whose sum is σ = 26404734720. Its totient is φ = 25286860800.

The previous prime is 25841884931. The next prime is 25841884963. The reversal of 25841884961 is 16948814852.

It is a cyclic number.

It is not a de Polignac number, because 25841884961 - 2⁶ = 25841884897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25841884897 and 25841884906.

It is not an unprimeable number, because it can be changed into a prime (25841884963) 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, 2997425 + ... + 3006033.

It is an arithmetic number, because the mean of its divisors is an integer number (1650295920).

Almost surely, 2^25841884961 is an apocalyptic number.

It is an amenable number.

25841884961 is a deficient number, since it is larger than the sum of its proper divisors (562849759).

25841884961 is a wasteful number, since it uses less digits than its factorization.

25841884961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9056.

The product of its digits is 4423680, while the sum is 56.

The spelling of 25841884961 in words is "twenty-five billion, eight hundred forty-one million, eight hundred eighty-four thousand, nine hundred sixty-one".