11946121965469 has 2 divisors, whose sum is σ = 11946121965470. Its totient is φ = 11946121965468.

The previous prime is 11946121965467. The next prime is 11946121965523. The reversal of 11946121965469 is 96456912164911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6051846002500 + 5894275962969 = 2460050^2 + 2427813^2 .

It is a cyclic number.

It is not a de Polignac number, because 11946121965469 - 2¹ = 11946121965467 is a prime.

It is a super-2 number, since 2×11946121965469² (a number of 27 digits) contains 22 as substring.

Together with 11946121965467, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11946121965469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11946121965461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5973060982734 + 5973060982735.

It is an arithmetic number, because the mean of its divisors is an integer number (5973060982735).

Almost surely, 2^{11946121965469} is an apocalyptic number.

It is an amenable number.

11946121965469 is a deficient number, since it is larger than the sum of its proper divisors (1).

11946121965469 is an equidigital number, since it uses as much as digits as its factorization.

11946121965469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25194240, while the sum is 64.

The spelling of 11946121965469 in words is "eleven trillion, nine hundred forty-six billion, one hundred twenty-one million, nine hundred sixty-five thousand, four hundred sixty-nine".