28107008320 has 56 divisors (see below), whose sum is σ = 69839823744. Its totient is φ = 10753982976.

The previous prime is 28107008221. The next prime is 28107008333. The reversal of 28107008320 is 2380070182.

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, 1902084 + ... + 1916803.

Almost surely, 2^28107008320 is an apocalyptic number.

28107008320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28107008320 is an abundant number, since it is smaller than the sum of its proper divisors (41732815424).

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

28107008320 is a wasteful number, since it uses less digits than its factorization.

28107008320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3818927 (or 3818917 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The spelling of 28107008320 in words is "twenty-eight billion, one hundred seven million, eight thousand, three hundred twenty".