1619364668 has 12 divisors (see below), whose sum is σ = 2834271720. Its totient is φ = 809572752.

The previous prime is 1619364647. The next prime is 1619364697. The reversal of 1619364668 is 8664639161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12218 + ... + 58206.

It is an arithmetic number, because the mean of its divisors is an integer number (236189310).

Almost surely, 2^1619364668 is an apocalyptic number.

It is an amenable number.

1619364668 is a deficient number, since it is larger than the sum of its proper divisors (1214907052).

1619364668 is a wasteful number, since it uses less digits than its factorization.

1619364668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54796 (or 54794 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 50.

The square root of 1619364668 is about 40241.3303458024. The cubic root of 1619364668 is about 1174.3067388996.

The spelling of 1619364668 in words is "one billion, six hundred nineteen million, three hundred sixty-four thousand, six hundred sixty-eight".