25538680410847 has 16 divisors (see below), whose sum is σ = 26719681332960. Its totient is φ = 24389764070400.

The previous prime is 25538680410839. The next prime is 25538680410851. The reversal of 25538680410847 is 74801408683552.

It is not a de Polignac number, because 25538680410847 - 2³ = 25538680410839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25538680410827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34054554 + ... + 34796407.

It is an arithmetic number, because the mean of its divisors is an integer number (1669980083310).

Almost surely, 2^{25538680410847} is an apocalyptic number.

25538680410847 is a deficient number, since it is larger than the sum of its proper divisors (1181000922113).

25538680410847 is a wasteful number, since it uses less digits than its factorization.

25538680410847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68851194.

The product of its (nonzero) digits is 51609600, while the sum is 61.

The spelling of 25538680410847 in words is "twenty-five trillion, five hundred thirty-eight billion, six hundred eighty million, four hundred ten thousand, eight hundred forty-seven".