12837187357 has 4 divisors (see below), whose sum is σ = 13279849020. Its totient is φ = 12394525696.

The previous prime is 12837187351. The next prime is 12837187381. The reversal of 12837187357 is 75378173821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75378173821 = 79 ⋅954154099.

It can be written as a sum of positive squares in 2 ways, for example, as 6761608441 + 6075578916 = 82229^2 + 77946^2 .

It is a cyclic number.

It is not a de Polignac number, because 12837187357 - 2⁷ = 12837187229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12837187351) 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 3 ways as a sum of consecutive naturals, for example, 221330788 + ... + 221330845.

It is an arithmetic number, because the mean of its divisors is an integer number (3319962255).

Almost surely, 2^12837187357 is an apocalyptic number.

It is an amenable number.

12837187357 is a deficient number, since it is larger than the sum of its proper divisors (442661663).

12837187357 is an equidigital number, since it uses as much as digits as its factorization.

12837187357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442661662.

The product of its digits is 1975680, while the sum is 52.

The spelling of 12837187357 in words is "twelve billion, eight hundred thirty-seven million, one hundred eighty-seven thousand, three hundred fifty-seven".