25860400481 has 8 divisors (see below), whose sum is σ = 26003517120. Its totient is φ = 25717648752.

The previous prime is 25860400441. The next prime is 25860400541. The reversal of 25860400481 is 18400406852.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25860400481 - 2²⁶ = 25793291617 is a prime.

It is a super-2 number, since 2×25860400481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25860400421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51515 + ... + 233183.

It is an arithmetic number, because the mean of its divisors is an integer number (3250439640).

Almost surely, 2^25860400481 is an apocalyptic number.

It is an amenable number.

25860400481 is a deficient number, since it is larger than the sum of its proper divisors (143116639).

25860400481 is a wasteful number, since it uses less digits than its factorization.

25860400481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182455.

The product of its (nonzero) digits is 61440, while the sum is 38.

The spelling of 25860400481 in words is "twenty-five billion, eight hundred sixty million, four hundred thousand, four hundred eighty-one".