12151601879 has 2 divisors, whose sum is σ = 12151601880. Its totient is φ = 12151601878.

The previous prime is 12151601873. The next prime is 12151601897. The reversal of 12151601879 is 97810615121.

It is a happy number.

Together with next prime (12151601897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (97810615121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12151601879 is a prime.

It is a super-2 number, since 2×12151601879² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12151601873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6075800939 + 6075800940.

It is an arithmetic number, because the mean of its divisors is an integer number (6075800940).

Almost surely, 2^12151601879 is an apocalyptic number.

12151601879 is a deficient number, since it is larger than the sum of its proper divisors (1).

12151601879 is an equidigital number, since it uses as much as digits as its factorization.

12151601879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 41.

The spelling of 12151601879 in words is "twelve billion, one hundred fifty-one million, six hundred one thousand, eight hundred seventy-nine".