28073822454 has 40 divisors (see below), whose sum is σ = 62802180600. Its totient is φ = 9295967700.

The previous prime is 28073822429. The next prime is 28073822467. The reversal of 28073822454 is 45422837082.

28073822454 is a `hidden beast` number, since 28 + 0 + 7 + 382 + 245 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 185919279 + ... + 185919429.

It is an arithmetic number, because the mean of its divisors is an integer number (1570054515).

Almost surely, 2^28073822454 is an apocalyptic number.

28073822454 is an abundant number, since it is smaller than the sum of its proper divisors (34728358146).

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

28073822454 is an frugal number, since it uses more digits than its factorization.

28073822454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 45.

The spelling of 28073822454 in words is "twenty-eight billion, seventy-three million, eight hundred twenty-two thousand, four hundred fifty-four".