28400253724 has 24 divisors (see below), whose sum is σ = 52805208960. Its totient is φ = 13327021296.

The previous prime is 28400253719. The next prime is 28400253751. The reversal of 28400253724 is 42735200482.

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 in 7 ways as a sum of consecutive naturals, for example, 1738072 + ... + 1754335.

It is an arithmetic number, because the mean of its divisors is an integer number (2200217040).

Almost surely, 2^28400253724 is an apocalyptic number.

It is an amenable number.

28400253724 is a deficient number, since it is larger than the sum of its proper divisors (24404955236).

28400253724 is a wasteful number, since it uses less digits than its factorization.

28400253724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3492537 (or 3492535 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 37.

The spelling of 28400253724 in words is "twenty-eight billion, four hundred million, two hundred fifty-three thousand, seven hundred twenty-four".