11512298477969 has 2 divisors, whose sum is σ = 11512298477970. Its totient is φ = 11512298477968.

The previous prime is 11512298477951. The next prime is 11512298477987. The reversal of 11512298477969 is 96977489221511.

It is a balanced prime because it is at equal distance from previous prime (11512298477951) and next prime (11512298477987).

It can be written as a sum of positive squares in only one way, i.e., 11489523744400 + 22774733569 = 3389620^2 + 150913^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11512298477969 is a prime.

It is a super-2 number, since 2×11512298477969² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11512298473969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5756149238984 + 5756149238985.

It is an arithmetic number, because the mean of its divisors is an integer number (5756149238985).

Almost surely, 2^{11512298477969} is an apocalyptic number.

It is an amenable number.

11512298477969 is a deficient number, since it is larger than the sum of its proper divisors (1).

11512298477969 is an equidigital number, since it uses as much as digits as its factorization.

11512298477969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 137168640, while the sum is 71.

The spelling of 11512298477969 in words is "eleven trillion, five hundred twelve billion, two hundred ninety-eight million, four hundred seventy-seven thousand, nine hundred sixty-nine".