28413147844 has 27 divisors (see below), whose sum is σ = 50068154703. Its totient is φ = 14108639400.

The previous prime is 28413147823. The next prime is 28413147853. The reversal of 28413147844 is 44874131482.

The square root of 28413147844 is 168562.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28413147794 and 28413147803.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 91360449 + ... + 91360759.

Almost surely, 2^28413147844 is an apocalyptic number.

28413147844 is the 168562-nd square number.

It is an amenable number.

28413147844 is a deficient number, since it is larger than the sum of its proper divisors (21655006859).

28413147844 is an frugal number, since it uses more digits than its factorization.

28413147844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168 (or 584 counting only the distinct ones).

The product of its digits is 688128, while the sum is 46.

The spelling of 28413147844 in words is "twenty-eight billion, four hundred thirteen million, one hundred forty-seven thousand, eight hundred forty-four".