1681189246 has 12 divisors (see below), whose sum is σ = 2771878536. Its totient is φ = 764176820.

The previous prime is 1681189231. The next prime is 1681189267. The reversal of 1681189246 is 6429811861.

It is a junction number, because it is equal to n+sod(n) for n = 1681189196 and 1681189205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3473290 + ... + 3473773.

It is an arithmetic number, because the mean of its divisors is an integer number (230989878).

Almost surely, 2^1681189246 is an apocalyptic number.

1681189246 is a deficient number, since it is larger than the sum of its proper divisors (1090689290).

1681189246 is a wasteful number, since it uses less digits than its factorization.

1681189246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6947087 (or 6947076 counting only the distinct ones).

The product of its digits is 165888, while the sum is 46.

The square root of 1681189246 is about 41002.3078130975. The cubic root of 1681189246 is about 1189.0648317471.

The spelling of 1681189246 in words is "one billion, six hundred eighty-one million, one hundred eighty-nine thousand, two hundred forty-six".