1839135475812 has 12 divisors (see below), whose sum is σ = 4291316110256. Its totient is φ = 613045158600.

The previous prime is 1839135475759. The next prime is 1839135475813. The reversal of 1839135475812 is 2185745319381.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1839135475813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76630644814 + ... + 76630644837.

Almost surely, 2^{1839135475812} is an apocalyptic number.

1839135475812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1839135475812 is an abundant number, since it is smaller than the sum of its proper divisors (2452180634444).

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

1839135475812 is a wasteful number, since it uses less digits than its factorization.

1839135475812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153261289658 (or 153261289656 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 57.

The spelling of 1839135475812 in words is "one trillion, eight hundred thirty-nine billion, one hundred thirty-five million, four hundred seventy-five thousand, eight hundred twelve".