1913643604 has 12 divisors (see below), whose sum is σ = 3349331104. Its totient is φ = 956691864.

The previous prime is 1913643593. The next prime is 1913643643. The reversal of 1913643604 is 4063463191.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5617 + ... + 62119.

Almost surely, 2^1913643604 is an apocalyptic number.

It is an amenable number.

1913643604 is a deficient number, since it is larger than the sum of its proper divisors (1435687500).

1913643604 is a wasteful number, since it uses less digits than its factorization.

1913643604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64974 (or 64972 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 1913643604 is about 43745.2123551824. The cubic root of 1913643604 is about 1241.5199026409.

The spelling of 1913643604 in words is "one billion, nine hundred thirteen million, six hundred forty-three thousand, six hundred four".