25909918364 has 12 divisors (see below), whose sum is σ = 49464389688. Its totient is φ = 11777235600.

The previous prime is 25909918361. The next prime is 25909918403. The reversal of 25909918364 is 46381990952.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25909918361) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 294430847 + ... + 294430934.

It is an arithmetic number, because the mean of its divisors is an integer number (4122032474).

Almost surely, 2^25909918364 is an apocalyptic number.

It is an amenable number.

25909918364 is a deficient number, since it is larger than the sum of its proper divisors (23554471324).

25909918364 is a wasteful number, since it uses less digits than its factorization.

25909918364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588861796 (or 588861794 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 56.

The spelling of 25909918364 in words is "twenty-five billion, nine hundred nine million, nine hundred eighteen thousand, three hundred sixty-four".