28034461851138 has 36 divisors (see below), whose sum is σ = 63074334523590. Its totient is φ = 9344820612672.

The previous prime is 28034461851133. The next prime is 28034461851163. The reversal of 28034461851138 is 83115816443082.

It is a happy number.

28034461851138 is a `hidden beast` number, since 2 + 8 + 0 + 3 + 4 + 4 + 618 + 5 + 1 + 13 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20599552600929 + 7434909250209 = 4538673^2 + 2726703^2 .

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

It is not an unprimeable number, because it can be changed into a prime (28034461851133) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1068210543 + ... + 1068236786.

Almost surely, 2^{28034461851138} is an apocalyptic number.

28034461851138 is an abundant number, since it is smaller than the sum of its proper divisors (35039872672452).

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

28034461851138 is an frugal number, since it uses more digits than its factorization.

28034461851138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136447355 (or 2136447334 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 28034461851138 in words is "twenty-eight trillion, thirty-four billion, four hundred sixty-one million, eight hundred fifty-one thousand, one hundred thirty-eight".