11238159291838 has 4 divisors (see below), whose sum is σ = 16857238937760. Its totient is φ = 5619079645918.

The previous prime is 11238159291823. The next prime is 11238159291869. The reversal of 11238159291838 is 83819295183211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2809539822958 + ... + 2809539822961.

It is an arithmetic number, because the mean of its divisors is an integer number (4214309734440).

Almost surely, 2^{11238159291838} is an apocalyptic number.

11238159291838 is a deficient number, since it is larger than the sum of its proper divisors (5619079645922).

11238159291838 is an equidigital number, since it uses as much as digits as its factorization.

11238159291838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5619079645921.

The product of its digits is 7464960, while the sum is 61.

The spelling of 11238159291838 in words is "eleven trillion, two hundred thirty-eight billion, one hundred fifty-nine million, two hundred ninety-one thousand, eight hundred thirty-eight".