1838135840943 has 8 divisors (see below), whose sum is σ = 2451751837056. Its totient is φ = 1224971869400.

The previous prime is 1838135840941. The next prime is 1838135840969. The reversal of 1838135840943 is 3490485318381.

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 1838135840943 - 2¹ = 1838135840941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838135840941) 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, 112996653 + ... + 113012918.

It is an arithmetic number, because the mean of its divisors is an integer number (306468979632).

Almost surely, 2^{1838135840943} is an apocalyptic number.

1838135840943 is a deficient number, since it is larger than the sum of its proper divisors (613615996113).

1838135840943 is a wasteful number, since it uses less digits than its factorization.

1838135840943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226012285.

The product of its (nonzero) digits is 9953280, while the sum is 57.

The spelling of 1838135840943 in words is "one trillion, eight hundred thirty-eight billion, one hundred thirty-five million, eight hundred forty thousand, nine hundred forty-three".