12815334837 has 32 divisors (see below), whose sum is σ = 19512483200. Its totient is φ = 8306820864.

The previous prime is 12815334809. The next prime is 12815334839. The reversal of 12815334837 is 73843351821.

12815334837 is a `hidden beast` number, since 1 + 2 + 81 + 533 + 4 + 8 + 37 = 666.

It is not a de Polignac number, because 12815334837 - 2¹⁹ = 12814810549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12815334792 and 12815334801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12815334839) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1771614 + ... + 1778832.

It is an arithmetic number, because the mean of its divisors is an integer number (609765100).

Almost surely, 2^12815334837 is an apocalyptic number.

It is an amenable number.

12815334837 is a deficient number, since it is larger than the sum of its proper divisors (6697148363).

12815334837 is a wasteful number, since it uses less digits than its factorization.

12815334837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9042 (or 9036 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The spelling of 12815334837 in words is "twelve billion, eight hundred fifteen million, three hundred thirty-four thousand, eight hundred thirty-seven".