84251768338 has 4 divisors (see below), whose sum is σ = 126377652510. Its totient is φ = 42125884168.

The previous prime is 84251768329. The next prime is 84251768351. The reversal of 84251768338 is 83386715248.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 74842186329 + 9409582009 = 273573^2 + 97003^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21062942083 + ... + 21062942086.

Almost surely, 2^84251768338 is an apocalyptic number.

84251768338 is a deficient number, since it is larger than the sum of its proper divisors (42125884172).

84251768338 is a wasteful number, since it uses less digits than its factorization.

84251768338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42125884171.

The product of its digits is 7741440, while the sum is 55.

The spelling of 84251768338 in words is "eighty-four billion, two hundred fifty-one million, seven hundred sixty-eight thousand, three hundred thirty-eight".