25478883142 has 8 divisors (see below), whose sum is σ = 38354333832. Its totient is φ = 12694105200.

The previous prime is 25478883109. The next prime is 25478883151. The reversal of 25478883142 is 24138887452.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25478883142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22667484 + ... + 22668607.

It is an arithmetic number, because the mean of its divisors is an integer number (4794291729).

Almost surely, 2^25478883142 is an apocalyptic number.

25478883142 is a deficient number, since it is larger than the sum of its proper divisors (12875450690).

25478883142 is a wasteful number, since it uses less digits than its factorization.

25478883142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45336374.

The product of its digits is 3440640, while the sum is 52.

The spelling of 25478883142 in words is "twenty-five billion, four hundred seventy-eight million, eight hundred eighty-three thousand, one hundred forty-two".