11915428667 has 2 divisors, whose sum is σ = 11915428668. Its totient is φ = 11915428666.

The previous prime is 11915428633. The next prime is 11915428697. The reversal of 11915428667 is 76682451911.

11915428667 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 is a cyclic number.

It is not a de Polignac number, because 11915428667 - 2²⁰ = 11914380091 is a prime.

It is not a weakly prime, because it can be changed into another prime (11915428697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5957714333 + 5957714334.

It is an arithmetic number, because the mean of its divisors is an integer number (5957714334).

Almost surely, 2^11915428667 is an apocalyptic number.

11915428667 is a deficient number, since it is larger than the sum of its proper divisors (1).

11915428667 is an equidigital number, since it uses as much as digits as its factorization.

11915428667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 50.

The spelling of 11915428667 in words is "eleven billion, nine hundred fifteen million, four hundred twenty-eight thousand, six hundred sixty-seven".