25681364754 has 16 divisors (see below), whose sum is σ = 51478677792. Its totient is φ = 8541130208.

The previous prime is 25681364749. The next prime is 25681364777. The reversal of 25681364754 is 45746318652.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 25681364697 and 25681364706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4828299 + ... + 4833614.

It is an arithmetic number, because the mean of its divisors is an integer number (3217417362).

Almost surely, 2^25681364754 is an apocalyptic number.

25681364754 is an abundant number, since it is smaller than the sum of its proper divisors (25797313038).

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

25681364754 is a wasteful number, since it uses less digits than its factorization.

25681364754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9662361.

The product of its digits is 4838400, while the sum is 51.

The spelling of 25681364754 in words is "twenty-five billion, six hundred eighty-one million, three hundred sixty-four thousand, seven hundred fifty-four".