1863623601316 has 27 divisors (see below), whose sum is σ = 3377822790979. Its totient is φ = 899642135168.

The previous prime is 1863623601311. The next prime is 1863623601331. The reversal of 1863623601316 is 6131063263681.

The square root of 1863623601316 is 1365146.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 43002316900 + 1820621284416 = 207370^2 + 1349304^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1863623601311) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 79166700 + ... + 79190236.

Almost surely, 2^{1863623601316} is an apocalyptic number.

1863623601316 is the 1365146-th square number.

It is an amenable number.

1863623601316 is a deficient number, since it is larger than the sum of its proper divisors (1514199189663).

1863623601316 is an frugal number, since it uses more digits than its factorization.

1863623601316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47136 (or 23568 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 46.

Adding to 1863623601316 its reverse (6131063263681), we get a palindrome (7994686864997).

The spelling of 1863623601316 in words is "one trillion, eight hundred sixty-three billion, six hundred twenty-three million, six hundred one thousand, three hundred sixteen".