1838705172051 has 16 divisors (see below), whose sum is σ = 2739711477888. Its totient is φ = 1087187092800.

The previous prime is 1838705172011. The next prime is 1838705172119. The reversal of 1838705172051 is 1502715078381.

It is not a de Polignac number, because 1838705172051 - 2¹⁰ = 1838705171027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1838705172011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679490581 + ... + 679493286.

It is an arithmetic number, because the mean of its divisors is an integer number (171231967368).

Almost surely, 2^{1838705172051} is an apocalyptic number.

1838705172051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1838705172051 is a deficient number, since it is larger than the sum of its proper divisors (901006305837).

1838705172051 is a wasteful number, since it uses less digits than its factorization.

1838705172051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358983922.

The product of its (nonzero) digits is 470400, while the sum is 48.

The spelling of 1838705172051 in words is "one trillion, eight hundred thirty-eight billion, seven hundred five million, one hundred seventy-two thousand, fifty-one".