83847851418 has 32 divisors (see below), whose sum is σ = 178480198656. Its totient is φ = 26168905728.

The previous prime is 83847851407. The next prime is 83847851491. The reversal of 83847851418 is 81415874838.

It is a super-2 number, since 2×83847851418² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2109946 + ... + 2149317.

It is an arithmetic number, because the mean of its divisors is an integer number (5577506208).

Almost surely, 2^83847851418 is an apocalyptic number.

83847851418 is an abundant number, since it is smaller than the sum of its proper divisors (94632347238).

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

83847851418 is a wasteful number, since it uses less digits than its factorization.

83847851418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4259478.

The product of its digits is 6881280, while the sum is 57.

The spelling of 83847851418 in words is "eighty-three billion, eight hundred forty-seven million, eight hundred fifty-one thousand, four hundred eighteen".