25872143442 has 8 divisors (see below), whose sum is σ = 51744286896. Its totient is φ = 8624047812.

The previous prime is 25872143417. The next prime is 25872143567. The reversal of 25872143442 is 24434127852.

It is a happy number.

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

25872143442 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 25872143394 and 25872143403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2156011948 + ... + 2156011959.

It is an arithmetic number, because the mean of its divisors is an integer number (6468035862).

Almost surely, 2^25872143442 is an apocalyptic number.

25872143442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25872143442 is a wasteful number, since it uses less digits than its factorization.

25872143442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4312023912.

The product of its digits is 430080, while the sum is 42.

The spelling of 25872143442 in words is "twenty-five billion, eight hundred seventy-two million, one hundred forty-three thousand, four hundred forty-two".