28298187680 has 96 divisors (see below), whose sum is σ = 76437115776. Its totient is φ = 9698171904.

The previous prime is 28298187637. The next prime is 28298187713. The reversal of 28298187680 is 8678189282.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4069967 + ... + 4076913.

It is an arithmetic number, because the mean of its divisors is an integer number (796219956).

Almost surely, 2^28298187680 is an apocalyptic number.

28298187680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28298187680 is an abundant number, since it is smaller than the sum of its proper divisors (48138928096).

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

28298187680 is a wasteful number, since it uses less digits than its factorization.

28298187680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10606 (or 10598 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 59.

The spelling of 28298187680 in words is "twenty-eight billion, two hundred ninety-eight million, one hundred eighty-seven thousand, six hundred eighty".