2134431563828 has 12 divisors (see below), whose sum is σ = 3744663942852. Its totient is φ = 1064527580160.

The previous prime is 2134431563827. The next prime is 2134431563839. The reversal of 2134431563828 is 8283651344312.

It can be written as a sum of positive squares in 2 ways, for example, as 1897445640484 + 236985923344 = 1377478^2 + 486812^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134431563827) 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, 672048653 + ... + 672051828.

It is an arithmetic number, because the mean of its divisors is an integer number (312055328571).

Almost surely, 2^{2134431563828} is an apocalyptic number.

It is an amenable number.

2134431563828 is a deficient number, since it is larger than the sum of its proper divisors (1610232379024).

2134431563828 is a wasteful number, since it uses less digits than its factorization.

2134431563828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344100882 (or 1344100880 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 50.

The spelling of 2134431563828 in words is "two trillion, one hundred thirty-four billion, four hundred thirty-one million, five hundred sixty-three thousand, eight hundred twenty-eight".