25428770144 has 12 divisors (see below), whose sum is σ = 50062891284. Its totient is φ = 12714385056.

The previous prime is 25428770131. The next prime is 25428770189. The reversal of 25428770144 is 44107782452.

It is a junction number, because it is equal to n+sod(n) for n = 25428770095 and 25428770104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 397324502 + ... + 397324565.

It is an arithmetic number, because the mean of its divisors is an integer number (4171907607).

Almost surely, 2^25428770144 is an apocalyptic number.

It is an amenable number.

25428770144 is a deficient number, since it is larger than the sum of its proper divisors (24634121140).

25428770144 is an equidigital number, since it uses as much as digits as its factorization.

25428770144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794649077 (or 794649069 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 44.

The spelling of 25428770144 in words is "twenty-five billion, four hundred twenty-eight million, seven hundred seventy thousand, one hundred forty-four".