28107843830 has 96 divisors (see below), whose sum is σ = 56548769760. Its totient is φ = 10050163200.

The previous prime is 28107843821. The next prime is 28107843839. The reversal of 28107843830 is 3834870182.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28107843821) and next prime (28107843839).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28107843839) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22721972 + ... + 22723208.

It is an arithmetic number, because the mean of its divisors is an integer number (589049685).

Almost surely, 2^28107843830 is an apocalyptic number.

28107843830 is an abundant number, since it is smaller than the sum of its proper divisors (28440925930).

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

28107843830 is a wasteful number, since it uses less digits than its factorization.

28107843830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566 (or 1555 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 28107843830 in words is "twenty-eight billion, one hundred seven million, eight hundred forty-three thousand, eight hundred thirty".