15428252144 has 20 divisors (see below), whose sum is σ = 29895330624. Its totient is φ = 7713328128.

The previous prime is 15428252129. The next prime is 15428252173. The reversal of 15428252144 is 44125282451.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15428252098 and 15428252107.

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, 129104 + ... + 218000.

Almost surely, 2^15428252144 is an apocalyptic number.

It is an amenable number.

15428252144 is a deficient number, since it is larger than the sum of its proper divisors (14467078480).

15428252144 is a wasteful number, since it uses less digits than its factorization.

15428252144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99752 (or 99746 counting only the distinct ones).

The product of its digits is 102400, while the sum is 38.

The spelling of 15428252144 in words is "fifteen billion, four hundred twenty-eight million, two hundred fifty-two thousand, one hundred forty-four".