1813140629838 has 24 divisors (see below), whose sum is σ = 4135233016200. Its totient is φ = 572570725104.

The previous prime is 1813140629821. The next prime is 1813140629939. The reversal of 1813140629838 is 8389260413181.

1813140629838 is a `hidden beast` number, since 1 + 8 + 1 + 3 + 1 + 4 + 0 + 629 + 8 + 3 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2650790053 + ... + 2650790736.

It is an arithmetic number, because the mean of its divisors is an integer number (172301375675).

Almost surely, 2^{1813140629838} is an apocalyptic number.

1813140629838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1813140629838 is an abundant number, since it is smaller than the sum of its proper divisors (2322092386362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1813140629838 is a wasteful number, since it uses less digits than its factorization.

1813140629838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5301580816 (or 5301580813 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 1813140629838 in words is "one trillion, eight hundred thirteen billion, one hundred forty million, six hundred twenty-nine thousand, eight hundred thirty-eight".