28547902657 has 8 divisors (see below), whose sum is σ = 29861959680. Its totient is φ = 27239916000.

The previous prime is 28547902637. The next prime is 28547902679. The reversal of 28547902657 is 75620974582.

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 28547902657 - 2¹¹ = 28547900609 is a prime.

It is a super-2 number, since 2×28547902657² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28547902598 and 28547902607.

It is not an unprimeable number, because it can be changed into a prime (28547902627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1507969 + ... + 1526782.

It is an arithmetic number, because the mean of its divisors is an integer number (3732744960).

Almost surely, 2^28547902657 is an apocalyptic number.

It is an amenable number.

28547902657 is a deficient number, since it is larger than the sum of its proper divisors (1314057023).

28547902657 is a wasteful number, since it uses less digits than its factorization.

28547902657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3035183.

The product of its (nonzero) digits is 8467200, while the sum is 55.

The spelling of 28547902657 in words is "twenty-eight billion, five hundred forty-seven million, nine hundred two thousand, six hundred fifty-seven".