25649714836794 has 16 divisors (see below), whose sum is σ = 51299610484032. Its totient is φ = 8549874810528.

The previous prime is 25649714836763. The next prime is 25649714836829. The reversal of 25649714836794 is 49763841794652.

It is a Curzon number.

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, 5653494 + ... + 9124769.

It is an arithmetic number, because the mean of its divisors is an integer number (3206225655252).

Almost surely, 2^{25649714836794} is an apocalyptic number.

25649714836794 is an abundant number, since it is smaller than the sum of its proper divisors (25649895647238).

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

25649714836794 is a wasteful number, since it uses less digits than its factorization.

25649714836794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15067541.

The product of its digits is 2194698240, while the sum is 75.

The spelling of 25649714836794 in words is "twenty-five trillion, six hundred forty-nine billion, seven hundred fourteen million, eight hundred thirty-six thousand, seven hundred ninety-four".