1816859114 has 16 divisors (see below), whose sum is σ = 3120583488. Its totient is φ = 777161952.

The previous prime is 1816859101. The next prime is 1816859147. The reversal of 1816859114 is 4119586181.

It is a Smith number, since the sum of its digits (44) 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116747 + ... + 131390.

It is an arithmetic number, because the mean of its divisors is an integer number (195036468).

Almost surely, 2^1816859114 is an apocalyptic number.

1816859114 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1816859114 is a deficient number, since it is larger than the sum of its proper divisors (1303724374).

1816859114 is a wasteful number, since it uses less digits than its factorization.

1816859114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248669.

The product of its digits is 69120, while the sum is 44.

The square root of 1816859114 is about 42624.6303678988. The cubic root of 1816859114 is about 1220.2264011435.

The spelling of 1816859114 in words is "one billion, eight hundred sixteen million, eight hundred fifty-nine thousand, one hundred fourteen".