25384501887671 has 16 divisors (see below), whose sum is σ = 26873995579200. Its totient is φ = 23942286547200.

The previous prime is 25384501887587. The next prime is 25384501887751. The reversal of 25384501887671 is 17678810548352.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25384501887671 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25384501887598 and 25384501887607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25384501817671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56328590 + ... + 56777451.

It is an arithmetic number, because the mean of its divisors is an integer number (1679624723700).

Almost surely, 2^{25384501887671} is an apocalyptic number.

25384501887671 is a deficient number, since it is larger than the sum of its proper divisors (1489493691529).

25384501887671 is a wasteful number, since it uses less digits than its factorization.

25384501887671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113106250.

The product of its (nonzero) digits is 90316800, while the sum is 65.

The spelling of 25384501887671 in words is "twenty-five trillion, three hundred eighty-four billion, five hundred one million, eight hundred eighty-seven thousand, six hundred seventy-one".