28268822204840 has 64 divisors (see below), whose sum is σ = 74381751480960. Its totient is φ = 9466768362240.

The previous prime is 28268822204827. The next prime is 28268822204863. The reversal of 28268822204840 is 4840222886282.

It is a Harshad number since it is a multiple of its sum of digits (56).

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, 1173942371 + ... + 1173966450.

It is an arithmetic number, because the mean of its divisors is an integer number (1162214866890).

Almost surely, 2^{28268822204840} is an apocalyptic number.

28268822204840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28268822204840 is an abundant number, since it is smaller than the sum of its proper divisors (46112929276120).

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

28268822204840 is a wasteful number, since it uses less digits than its factorization.

28268822204840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347908882 (or 2347908878 counting only the distinct ones).

The product of its (nonzero) digits is 12582912, while the sum is 56.

The spelling of 28268822204840 in words is "twenty-eight trillion, two hundred sixty-eight billion, eight hundred twenty-two million, two hundred four thousand, eight hundred forty".