28083993344 has 36 divisors (see below), whose sum is σ = 61154497320. Its totient is φ = 12765450240.

The previous prime is 28083993337. The next prime is 28083993359. The reversal of 28083993344 is 44339938082.

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, 4983689 + ... + 4989320.

Almost surely, 2^28083993344 is an apocalyptic number.

It is an amenable number.

28083993344 is an abundant number, since it is smaller than the sum of its proper divisors (33070503976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28083993344 is an equidigital number, since it uses as much as digits as its factorization.

28083993344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9973036 (or 9973022 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 53.

The spelling of 28083993344 in words is "twenty-eight billion, eighty-three million, nine hundred ninety-three thousand, three hundred forty-four".