10028889820 has 24 divisors (see below), whose sum is σ = 21065937984. Its totient is φ = 4010552256.

The previous prime is 10028889733. The next prime is 10028889877. The reversal of 10028889820 is 2898882001.

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, 21997 + ... + 143323.

It is an arithmetic number, because the mean of its divisors is an integer number (877747416).

Almost surely, 2^10028889820 is an apocalyptic number.

10028889820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10028889820 is an abundant number, since it is smaller than the sum of its proper divisors (11037048164).

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

10028889820 is a wasteful number, since it uses less digits than its factorization.

10028889820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125469 (or 125467 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 46.

The spelling of 10028889820 in words is "ten billion, twenty-eight million, eight hundred eighty-nine thousand, eight hundred twenty".