11619271943 has 2 divisors, whose sum is σ = 11619271944. Its totient is φ = 11619271942.

The previous prime is 11619271931. The next prime is 11619271969. The reversal of 11619271943 is 34917291611.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11619271943 - 2⁴ = 11619271927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11619271894 and 11619271903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11619271043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5809635971 + 5809635972.

It is an arithmetic number, because the mean of its divisors is an integer number (5809635972).

Almost surely, 2^11619271943 is an apocalyptic number.

11619271943 is a deficient number, since it is larger than the sum of its proper divisors (1).

11619271943 is an equidigital number, since it uses as much as digits as its factorization.

11619271943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 44.

The spelling of 11619271943 in words is "eleven billion, six hundred nineteen million, two hundred seventy-one thousand, nine hundred forty-three".