1838319423838 has 8 divisors (see below), whose sum is σ = 2824734724560. Its totient is φ = 896741182320.

The previous prime is 1838319423827. The next prime is 1838319423859. The reversal of 1838319423838 is 8383249138381.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11209264698 + ... + 11209264861.

It is an arithmetic number, because the mean of its divisors is an integer number (353091840570).

Almost surely, 2^{1838319423838} is an apocalyptic number.

1838319423838 is a deficient number, since it is larger than the sum of its proper divisors (986415300722).

1838319423838 is a wasteful number, since it uses less digits than its factorization.

1838319423838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22418529602.

The product of its digits is 23887872, while the sum is 61.

The spelling of 1838319423838 in words is "one trillion, eight hundred thirty-eight billion, three hundred nineteen million, four hundred twenty-three thousand, eight hundred thirty-eight".