11819409293 has 2 divisors, whose sum is σ = 11819409294. Its totient is φ = 11819409292.

The previous prime is 11819409229. The next prime is 11819409311. The reversal of 11819409293 is 39290491811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8093161444 + 3726247849 = 89962^2 + 61043^2 .

It is a cyclic number.

It is not a de Polignac number, because 11819409293 - 2⁶ = 11819409229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11819400293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5909704646 + 5909704647.

It is an arithmetic number, because the mean of its divisors is an integer number (5909704647).

Almost surely, 2^11819409293 is an apocalyptic number.

It is an amenable number.

11819409293 is a deficient number, since it is larger than the sum of its proper divisors (1).

11819409293 is an equidigital number, since it uses as much as digits as its factorization.

11819409293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 47.

The spelling of 11819409293 in words is "eleven billion, eight hundred nineteen million, four hundred nine thousand, two hundred ninety-three".