28672575857 has 8 divisors (see below), whose sum is σ = 28850798592. Its totient is φ = 28494431200.

The previous prime is 28672575839. The next prime is 28672575881. The reversal of 28672575857 is 75857527682.

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 28672575857 - 2⁶ = 28672575793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28672575857.

It is not an unprimeable number, because it can be changed into a prime (28672545857) 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, 831632 + ... + 865422.

It is an arithmetic number, because the mean of its divisors is an integer number (3606349824).

Almost surely, 2^28672575857 is an apocalyptic number.

It is an amenable number.

28672575857 is a deficient number, since it is larger than the sum of its proper divisors (178222735).

28672575857 is a wasteful number, since it uses less digits than its factorization.

28672575857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39039.

The product of its digits is 65856000, while the sum is 62.

The spelling of 28672575857 in words is "twenty-eight billion, six hundred seventy-two million, five hundred seventy-five thousand, eight hundred fifty-seven".