28723097616 has 40 divisors (see below), whose sum is σ = 76594930944. Its totient is φ = 9265514880.

The previous prime is 28723097593. The next prime is 28723097629. The reversal of 28723097616 is 61679032782.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9650091 + ... + 9653066.

Almost surely, 2^28723097616 is an apocalyptic number.

It is an amenable number.

28723097616 is an abundant number, since it is smaller than the sum of its proper divisors (47871833328).

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

28723097616 is a wasteful number, since it uses less digits than its factorization.

28723097616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19303199 (or 19303193 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 28723097616 in words is "twenty-eight billion, seven hundred twenty-three million, ninety-seven thousand, six hundred sixteen".