1838963948911 has 8 divisors (see below), whose sum is σ = 1856129716224. Its totient is φ = 1821813826560.

The previous prime is 1838963948903. The next prime is 1838963948933. The reversal of 1838963948911 is 1198493698381.

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

It is a cyclic number.

It is not a de Polignac number, because 1838963948911 - 2³ = 1838963948903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838963948711) 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, 3674991 + ... + 4145296.

It is an arithmetic number, because the mean of its divisors is an integer number (232016214528).

Almost surely, 2^{1838963948911} is an apocalyptic number.

1838963948911 is a deficient number, since it is larger than the sum of its proper divisors (17165767313).

1838963948911 is a wasteful number, since it uses less digits than its factorization.

1838963948911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7822481.

The product of its digits is 80621568, while the sum is 70.

The spelling of 1838963948911 in words is "one trillion, eight hundred thirty-eight billion, nine hundred sixty-three million, nine hundred forty-eight thousand, nine hundred eleven".