28677685120 has 96 divisors (see below), whose sum is σ = 79750754280. Its totient is φ = 9832338432.

The previous prime is 28677685103. The next prime is 28677685121. The reversal of 28677685120 is 2158677682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28677685121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 425874 + ... + 488593.

Almost surely, 2^28677685120 is an apocalyptic number.

28677685120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28677685120 is an abundant number, since it is smaller than the sum of its proper divisors (51073069160).

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

28677685120 is an equidigital number, since it uses as much as digits as its factorization.

28677685120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914500 (or 914481 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 52.

The spelling of 28677685120 in words is "twenty-eight billion, six hundred seventy-seven million, six hundred eighty-five thousand, one hundred twenty".