25871294841 has 48 divisors (see below), whose sum is σ = 42822383616. Its totient is φ = 13804245504.

The previous prime is 25871294833. The next prime is 25871294851. The reversal of 25871294841 is 14849217852.

It is not a de Polignac number, because 25871294841 - 2³ = 25871294833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25871294851) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 276615 + ... + 358131.

It is an arithmetic number, because the mean of its divisors is an integer number (892132992).

Almost surely, 2^25871294841 is an apocalyptic number.

25871294841 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25871294841 is a deficient number, since it is larger than the sum of its proper divisors (16951088775).

25871294841 is a wasteful number, since it uses less digits than its factorization.

25871294841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81678 (or 81671 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 51.

The spelling of 25871294841 in words is "twenty-five billion, eight hundred seventy-one million, two hundred ninety-four thousand, eight hundred forty-one".