11626439999 has 2 divisors, whose sum is σ = 11626440000. Its totient is φ = 11626439998.

The previous prime is 11626439969. The next prime is 11626440011. The reversal of 11626439999 is 99993462611.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11626439999 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11626439969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5813219999 + 5813220000.

It is an arithmetic number, because the mean of its divisors is an integer number (5813220000).

Almost surely, 2^11626439999 is an apocalyptic number.

11626439999 is a deficient number, since it is larger than the sum of its proper divisors (1).

11626439999 is an equidigital number, since it uses as much as digits as its factorization.

11626439999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5668704, while the sum is 59.

The spelling of 11626439999 in words is "eleven billion, six hundred twenty-six million, four hundred thirty-nine thousand, nine hundred ninety-nine".