8152181327837 has 2 divisors, whose sum is σ = 8152181327838. Its totient is φ = 8152181327836.

The previous prime is 8152181327827. The next prime is 8152181327909. The reversal of 8152181327837 is 7387231812518.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6978293589316 + 1173887738521 = 2641646^2 + 1083461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8152181327837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8152181327827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4076090663918 + 4076090663919.

It is an arithmetic number, because the mean of its divisors is an integer number (4076090663919).

Almost surely, 2^{8152181327837} is an apocalyptic number.

It is an amenable number.

8152181327837 is a deficient number, since it is larger than the sum of its proper divisors (1).

8152181327837 is an equidigital number, since it uses as much as digits as its factorization.

8152181327837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4515840, while the sum is 56.

The spelling of 8152181327837 in words is "eight trillion, one hundred fifty-two billion, one hundred eighty-one million, three hundred twenty-seven thousand, eight hundred thirty-seven".