1838339386157 has 4 divisors (see below), whose sum is σ = 1838384985216. Its totient is φ = 1838293787100.

The previous prime is 1838339386139. The next prime is 1838339386183. The reversal of 1838339386157 is 7516839338381.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1838339386157 - 2¹⁴ = 1838339369773 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1838339386093 and 1838339386102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838339386187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22739003 + ... + 22819704.

It is an arithmetic number, because the mean of its divisors is an integer number (459596246304).

Almost surely, 2^{1838339386157} is an apocalyptic number.

It is an amenable number.

1838339386157 is a deficient number, since it is larger than the sum of its proper divisors (45599059).

1838339386157 is an equidigital number, since it uses as much as digits as its factorization.

1838339386157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45599058.

The product of its digits is 78382080, while the sum is 65.

The spelling of 1838339386157 in words is "one trillion, eight hundred thirty-eight billion, three hundred thirty-nine million, three hundred eighty-six thousand, one hundred fifty-seven".