1863324916 has 24 divisors (see below), whose sum is σ = 3484320840. Its totient is φ = 868810752.

The previous prime is 1863324877. The next prime is 1863324919. The reversal of 1863324916 is 6194233681.

It can be written as a sum of positive squares in 4 ways, for example, as 571210000 + 1292114916 = 23900^2 + 35946^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1863324919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118285 + ... + 133108.

It is an arithmetic number, because the mean of its divisors is an integer number (145180035).

Almost surely, 2^1863324916 is an apocalyptic number.

It is an amenable number.

1863324916 is a deficient number, since it is larger than the sum of its proper divisors (1620995924).

1863324916 is a wasteful number, since it uses less digits than its factorization.

1863324916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251523 (or 251521 counting only the distinct ones).

The product of its digits is 186624, while the sum is 43.

The square root of 1863324916 is about 43166.2474162395. The cubic root of 1863324916 is about 1230.5413079997.

The spelling of 1863324916 in words is "one billion, eight hundred sixty-three million, three hundred twenty-four thousand, nine hundred sixteen".