28446474168 has 48 divisors (see below), whose sum is σ = 88048612080. Its totient is φ = 8127563904.

The previous prime is 28446474167. The next prime is 28446474179. The reversal of 28446474168 is 86147464482.

28446474168 is a `hidden beast` number, since 2 + 8 + 4 + 4 + 6 + 474 + 168 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28446474167) 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, 28220205 + ... + 28221212.

It is an arithmetic number, because the mean of its divisors is an integer number (1834346085).

Almost surely, 2^28446474168 is an apocalyptic number.

28446474168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28446474168 is an abundant number, since it is smaller than the sum of its proper divisors (59602137912).

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

28446474168 is a wasteful number, since it uses less digits than its factorization.

28446474168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56441436 (or 56441429 counting only the distinct ones).

The product of its digits is 8257536, while the sum is 54.

The spelling of 28446474168 in words is "twenty-eight billion, four hundred forty-six million, four hundred seventy-four thousand, one hundred sixty-eight".