25724543131284 has 12 divisors (see below), whose sum is σ = 60023933973024. Its totient is φ = 8574847710424.

The previous prime is 25724543131283. The next prime is 25724543131361. The reversal of 25724543131284 is 48213134542752.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-5 number, since 5×25724543131284⁵ (a number of 68 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25724543131283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071855963792 + ... + 1071855963815.

It is an arithmetic number, because the mean of its divisors is an integer number (5001994497752).

Almost surely, 2^{25724543131284} is an apocalyptic number.

It is an amenable number.

25724543131284 is an abundant number, since it is smaller than the sum of its proper divisors (34299390841740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25724543131284 is a wasteful number, since it uses less digits than its factorization.

25724543131284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143711927614 (or 2143711927612 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 51.

The spelling of 25724543131284 in words is "twenty-five trillion, seven hundred twenty-four billion, five hundred forty-three million, one hundred thirty-one thousand, two hundred eighty-four".