28349995724 has 6 divisors (see below), whose sum is σ = 49612492524. Its totient is φ = 14174997860.

The previous prime is 28349995699. The next prime is 28349995733. The reversal of 28349995724 is 42759994382.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3543749462 + ... + 3543749469.

It is an arithmetic number, because the mean of its divisors is an integer number (8268748754).

Almost surely, 2^28349995724 is an apocalyptic number.

It is an amenable number.

28349995724 is a deficient number, since it is larger than the sum of its proper divisors (21262496800).

28349995724 is a wasteful number, since it uses less digits than its factorization.

28349995724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7087498935 (or 7087498933 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 62.

The spelling of 28349995724 in words is "twenty-eight billion, three hundred forty-nine million, nine hundred ninety-five thousand, seven hundred twenty-four".