12293019649 has 2 divisors, whose sum is σ = 12293019650. Its totient is φ = 12293019648.

The previous prime is 12293019593. The next prime is 12293019659. The reversal of 12293019649 is 94691039221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8823220624 + 3469799025 = 93932^2 + 58905^2 .

It is a cyclic number.

It is not a de Polignac number, because 12293019649 - 2²⁵ = 12259465217 is a prime.

It is a super-2 number, since 2×12293019649² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12293019599 and 12293019608.

It is not a weakly prime, because it can be changed into another prime (12293019659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6146509824 + 6146509825.

It is an arithmetic number, because the mean of its divisors is an integer number (6146509825).

Almost surely, 2^12293019649 is an apocalyptic number.

It is an amenable number.

12293019649 is a deficient number, since it is larger than the sum of its proper divisors (1).

12293019649 is an equidigital number, since it uses as much as digits as its factorization.

12293019649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 46.

The spelling of 12293019649 in words is "twelve billion, two hundred ninety-three million, nineteen thousand, six hundred forty-nine".