28773733194 has 40 divisors (see below), whose sum is σ = 67277723040. Its totient is φ = 9174232584.

The previous prime is 28773733117. The next prime is 28773733201. The reversal of 28773733194 is 49133737782.

28773733194 is a `hidden beast` number, since 2 + 87 + 7 + 373 + 3 + 194 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 28773733194.

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, 3857484 + ... + 3864935.

It is an arithmetic number, because the mean of its divisors is an integer number (1681943076).

Almost surely, 2^28773733194 is an apocalyptic number.

28773733194 is an abundant number, since it is smaller than the sum of its proper divisors (38503989846).

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

28773733194 is a wasteful number, since it uses less digits than its factorization.

28773733194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7722456 (or 7722447 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 54.

The spelling of 28773733194 in words is "twenty-eight billion, seven hundred seventy-three million, seven hundred thirty-three thousand, one hundred ninety-four".