11619271969 has 2 divisors, whose sum is σ = 11619271970. Its totient is φ = 11619271968.

The previous prime is 11619271943. The next prime is 11619271987. The reversal of 11619271969 is 96917291611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11560550400 + 58721569 = 107520^2 + 7663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11619271969 is a prime.

It is a super-2 number, since 2×11619271969² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11619271999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5809635984 + 5809635985.

It is an arithmetic number, because the mean of its divisors is an integer number (5809635985).

Almost surely, 2^11619271969 is an apocalyptic number.

It is an amenable number.

11619271969 is a deficient number, since it is larger than the sum of its proper divisors (1).

11619271969 is an equidigital number, since it uses as much as digits as its factorization.

11619271969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 52.

The spelling of 11619271969 in words is "eleven billion, six hundred nineteen million, two hundred seventy-one thousand, nine hundred sixty-nine".