28700653697 has 8 divisors (see below), whose sum is σ = 28931370720. Its totient is φ = 28470283200.

The previous prime is 28700653693. The next prime is 28700653717. The reversal of 28700653697 is 79635600782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28700653697 - 2² = 28700653693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28700653693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80978 + ... + 252900.

It is an arithmetic number, because the mean of its divisors is an integer number (3616421340).

Almost surely, 2^28700653697 is an apocalyptic number.

It is an amenable number.

28700653697 is a deficient number, since it is larger than the sum of its proper divisors (230717023).

28700653697 is a wasteful number, since it uses less digits than its factorization.

28700653697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173263.

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 28700653697 in words is "twenty-eight billion, seven hundred million, six hundred fifty-three thousand, six hundred ninety-seven".