28456317556 has 24 divisors (see below), whose sum is σ = 53408587680. Its totient is φ = 13224979872.

The previous prime is 28456317473. The next prime is 28456317557. The reversal of 28456317556 is 65571365482.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28456317557) 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, 3528286 + ... + 3536341.

It is an arithmetic number, because the mean of its divisors is an integer number (2225357820).

Almost surely, 2^28456317556 is an apocalyptic number.

It is an amenable number.

28456317556 is a deficient number, since it is larger than the sum of its proper divisors (24952270124).

28456317556 is a wasteful number, since it uses less digits than its factorization.

28456317556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7064703 (or 7064701 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 52.

The spelling of 28456317556 in words is "twenty-eight billion, four hundred fifty-six million, three hundred seventeen thousand, five hundred fifty-six".