28228741504 has 32 divisors (see below), whose sum is σ = 56248705800. Its totient is φ = 14111419392.

The previous prime is 28228741459. The next prime is 28228741511. The reversal of 28228741504 is 40514782282.

It is a tau number, because it is divible by the number of its divisors (32).

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, 673284 + ... + 713980.

Almost surely, 2^28228741504 is an apocalyptic number.

It is an amenable number.

28228741504 is a deficient number, since it is larger than the sum of its proper divisors (28019964296).

28228741504 is an equidigital number, since it uses as much as digits as its factorization.

28228741504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46130 (or 46118 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 43.

The spelling of 28228741504 in words is "twenty-eight billion, two hundred twenty-eight million, seven hundred forty-one thousand, five hundred four".