1838171968132 has 12 divisors (see below), whose sum is σ = 3240281244060. Its totient is φ = 912377326976.

The previous prime is 1838171968099. The next prime is 1838171968147. The reversal of 1838171968132 is 2318691718381.

It can be written as a sum of positive squares in 2 ways, for example, as 953153879616 + 885018088516 = 976296^2 + 940754^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1677163657 + ... + 1677164752.

It is an arithmetic number, because the mean of its divisors is an integer number (270023437005).

Almost surely, 2^{1838171968132} is an apocalyptic number.

It is an amenable number.

1838171968132 is a deficient number, since it is larger than the sum of its proper divisors (1402109275928).

1838171968132 is a wasteful number, since it uses less digits than its factorization.

1838171968132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3354328550 (or 3354328548 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 58.

The spelling of 1838171968132 in words is "one trillion, eight hundred thirty-eight billion, one hundred seventy-one million, nine hundred sixty-eight thousand, one hundred thirty-two".