28601823020 has 48 divisors (see below), whose sum is σ = 60232273920. Its totient is φ = 11408700864.

The previous prime is 28601823017. The next prime is 28601823073. The reversal of 28601823020 is 2032810682.

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, 19875461 + ... + 19876899.

It is an arithmetic number, because the mean of its divisors is an integer number (1254839040).

Almost surely, 2^28601823020 is an apocalyptic number.

28601823020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28601823020 is an abundant number, since it is smaller than the sum of its proper divisors (31630450900).

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

28601823020 is a wasteful number, since it uses less digits than its factorization.

28601823020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3542 (or 3540 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 28601823020 in words is "twenty-eight billion, six hundred one million, eight hundred twenty-three thousand, twenty".