11952897667 has 2 divisors, whose sum is σ = 11952897668. Its totient is φ = 11952897666.

The previous prime is 11952897631. The next prime is 11952897689. The reversal of 11952897667 is 76679825911.

11952897667 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 a de Polignac number, because none of the positive numbers 2^k-11952897667 is a prime.

It is not a weakly prime, because it can be changed into another prime (11952891667) 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, 5976448833 + 5976448834.

It is an arithmetic number, because the mean of its divisors is an integer number (5976448834).

Almost surely, 2^11952897667 is an apocalyptic number.

11952897667 is a deficient number, since it is larger than the sum of its proper divisors (1).

11952897667 is an equidigital number, since it uses as much as digits as its factorization.

11952897667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11430720, while the sum is 61.

The spelling of 11952897667 in words is "eleven billion, nine hundred fifty-two million, eight hundred ninety-seven thousand, six hundred sixty-seven".