1863636363636 has 24 divisors (see below), whose sum is σ = 4498432602720. Its totient is φ = 599791013472.

The previous prime is 1863636363629. The next prime is 1863636363637. The reversal of 1863636363636 is 6363636363681.

It is a happy number.

1863636363636 is a modest number, since divided by 36363636 gives 18636 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 1863636363636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1863636363637) 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, 2677638106 + ... + 2677638801.

It is an arithmetic number, because the mean of its divisors is an integer number (187434691780).

Almost surely, 2^{1863636363636} is an apocalyptic number.

It is an amenable number.

1863636363636 is an abundant number, since it is smaller than the sum of its proper divisors (2634796239084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1863636363636 is a wasteful number, since it uses less digits than its factorization.

1863636363636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5355276943 (or 5355276941 counting only the distinct ones).

The product of its digits is 90699264, while the sum is 60.

The spelling of 1863636363636 in words is "one trillion, eight hundred sixty-three billion, six hundred thirty-six million, three hundred sixty-three thousand, six hundred thirty-six".