28452559980 has 96 divisors (see below), whose sum is σ = 85836945600. Its totient is φ = 7000316928.

The previous prime is 28452559969. The next prime is 28452559991. The reversal of 28452559980 is 8995525482.

It is an interprime number because it is at equal distance from previous prime (28452559969) and next prime (28452559991).

It is a self number, because there is not a number n which added to its sum of digits gives 28452559980.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1855786 + ... + 1871054.

It is an arithmetic number, because the mean of its divisors is an integer number (894134850).

Almost surely, 2^28452559980 is an apocalyptic number.

28452559980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28452559980 is an abundant number, since it is smaller than the sum of its proper divisors (57384385620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28452559980 is a wasteful number, since it uses less digits than its factorization.

28452559980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17683 (or 17681 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 57.

The spelling of 28452559980 in words is "twenty-eight billion, four hundred fifty-two million, five hundred fifty-nine thousand, nine hundred eighty".