84943816379 has 16 divisors (see below), whose sum is σ = 88984817664. Its totient is φ = 80986651200.

The previous prime is 84943816339. The next prime is 84943816403. The reversal of 84943816379 is 97361834948.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84943816379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84943816339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2040992 + ... + 2082194.

It is an arithmetic number, because the mean of its divisors is an integer number (5561551104).

Almost surely, 2^84943816379 is an apocalyptic number.

84943816379 is a deficient number, since it is larger than the sum of its proper divisors (4041001285).

84943816379 is a wasteful number, since it uses less digits than its factorization.

84943816379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42218.

The product of its digits is 31352832, while the sum is 62.

The spelling of 84943816379 in words is "eighty-four billion, nine hundred forty-three million, eight hundred sixteen thousand, three hundred seventy-nine".