1863642712 has 16 divisors (see below), whose sum is σ = 3646257840. Its totient is φ = 891307296.

The previous prime is 1863642709. The next prime is 1863642713. The reversal of 1863642712 is 2172463681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1863642713) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5064063 + ... + 5064430.

It is an arithmetic number, because the mean of its divisors is an integer number (227891115).

Almost surely, 2^1863642712 is an apocalyptic number.

It is an amenable number.

1863642712 is a deficient number, since it is larger than the sum of its proper divisors (1782615128).

1863642712 is a wasteful number, since it uses less digits than its factorization.

1863642712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10128522 (or 10128518 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 1863642712 is about 43169.9283297992. The cubic root of 1863642712 is about 1230.6112616029.

The spelling of 1863642712 in words is "one billion, eight hundred sixty-three million, six hundred forty-two thousand, seven hundred twelve".