1996618682 has 4 divisors (see below), whose sum is σ = 2994928026. Its totient is φ = 998309340.

The previous prime is 1996618639. The next prime is 1996618721. The reversal of 1996618682 is 2868166991.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2868166991 = 61 ⋅47019131.

It can be written as a sum of positive squares in only one way, i.e., 1983009961 + 13608721 = 44531^2 + 3689^2 .

It is a super-2 number, since 2×1996618682² = 7972972322622834248, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 499154669 + ... + 499154672.

Almost surely, 2^1996618682 is an apocalyptic number.

1996618682 is a deficient number, since it is larger than the sum of its proper divisors (998309344).

1996618682 is an equidigital number, since it uses as much as digits as its factorization.

1996618682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998309343.

The product of its digits is 2239488, while the sum is 56.

The square root of 1996618682 is about 44683.5392734282. The cubic root of 1996618682 is about 1259.2106170904.

The spelling of 1996618682 in words is "one billion, nine hundred ninety-six million, six hundred eighteen thousand, six hundred eighty-two".