28556245982 has 16 divisors (see below), whose sum is σ = 47610072432. Its totient is φ = 12735203520.

The previous prime is 28556245967. The next prime is 28556246101. The reversal of 28556245982 is 28954265582.

It is a super-2 number, since 2×28556245982² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12244223 + ... + 12246554.

It is an arithmetic number, because the mean of its divisors is an integer number (2975629527).

Almost surely, 2^28556245982 is an apocalyptic number.

28556245982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28556245982 is a deficient number, since it is larger than the sum of its proper divisors (19053826450).

28556245982 is a wasteful number, since it uses less digits than its factorization.

28556245982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24490843.

The product of its digits is 13824000, while the sum is 56.

The spelling of 28556245982 in words is "twenty-eight billion, five hundred fifty-six million, two hundred forty-five thousand, nine hundred eighty-two".