12151278511837 has 2 divisors, whose sum is σ = 12151278511838. Its totient is φ = 12151278511836.

The previous prime is 12151278511817. The next prime is 12151278511849. The reversal of 12151278511837 is 73811587215121.

12151278511837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11869857810756 + 281420701081 = 3445266^2 + 530491^2 .

It is a cyclic number.

It is not a de Polignac number, because 12151278511837 - 2¹⁹ = 12151277987549 is a prime.

It is a super-2 number, since 2×12151278511837² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12151278511817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6075639255918 + 6075639255919.

It is an arithmetic number, because the mean of its divisors is an integer number (6075639255919).

Almost surely, 2^{12151278511837} is an apocalyptic number.

It is an amenable number.

12151278511837 is a deficient number, since it is larger than the sum of its proper divisors (1).

12151278511837 is an equidigital number, since it uses as much as digits as its factorization.

12151278511837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 940800, while the sum is 52.

The spelling of 12151278511837 in words is "twelve trillion, one hundred fifty-one billion, two hundred seventy-eight million, five hundred eleven thousand, eight hundred thirty-seven".