28657470927 has 8 divisors (see below), whose sum is σ = 38226045616. Its totient is φ = 19096938432.

The previous prime is 28657470923. The next prime is 28657470929. The reversal of 28657470927 is 72907475682.

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

It is not a de Polignac number, because 28657470927 - 2² = 28657470923 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28657470923) 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, 2002228 + ... + 2016489.

It is an arithmetic number, because the mean of its divisors is an integer number (4778255702).

Almost surely, 2^28657470927 is an apocalyptic number.

28657470927 is a deficient number, since it is larger than the sum of its proper divisors (9568574689).

28657470927 is a wasteful number, since it uses less digits than its factorization.

28657470927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4021097.

The product of its (nonzero) digits is 11854080, while the sum is 57.

The spelling of 28657470927 in words is "twenty-eight billion, six hundred fifty-seven million, four hundred seventy thousand, nine hundred twenty-seven".