25887013744 has 20 divisors (see below), whose sum is σ = 50281179120. Its totient is φ = 12911225600.

The previous prime is 25887013741. The next prime is 25887013753. The reversal of 25887013744 is 44731078852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25887013741) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2010964 + ... + 2023795.

It is an arithmetic number, because the mean of its divisors is an integer number (2514058956).

Almost surely, 2^25887013744 is an apocalyptic number.

It is an amenable number.

25887013744 is a deficient number, since it is larger than the sum of its proper divisors (24394165376).

25887013744 is a wasteful number, since it uses less digits than its factorization.

25887013744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035168 (or 4035162 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 25887013744 in words is "twenty-five billion, eight hundred eighty-seven million, thirteen thousand, seven hundred forty-four".