1138218263863 has 8 divisors (see below), whose sum is σ = 1161601426080. Its totient is φ = 1115039321760.

The previous prime is 1138218263851. The next prime is 1138218263939. The reversal of 1138218263863 is 3683628128311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1138218263863 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1138218263863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138218263813) 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, 51043768 + ... + 51066061.

It is an arithmetic number, because the mean of its divisors is an integer number (145200178260).

Almost surely, 2^{1138218263863} is an apocalyptic number.

1138218263863 is a deficient number, since it is larger than the sum of its proper divisors (23383162217).

1138218263863 is a wasteful number, since it uses less digits than its factorization.

1138218263863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102110057.

The product of its digits is 1990656, while the sum is 52.

The spelling of 1138218263863 in words is "one trillion, one hundred thirty-eight billion, two hundred eighteen million, two hundred sixty-three thousand, eight hundred sixty-three".