12209488639 has 2 divisors, whose sum is σ = 12209488640. Its totient is φ = 12209488638.

The previous prime is 12209488619. The next prime is 12209488657. The reversal of 12209488639 is 93688490221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12209488639 - 2¹⁵ = 12209455871 is a prime.

It is a super-2 number, since 2×12209488639² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12209488609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6104744319 + 6104744320.

It is an arithmetic number, because the mean of its divisors is an integer number (6104744320).

Almost surely, 2^12209488639 is an apocalyptic number.

12209488639 is a deficient number, since it is larger than the sum of its proper divisors (1).

12209488639 is an equidigital number, since it uses as much as digits as its factorization.

12209488639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 12209488639 in words is "twelve billion, two hundred nine million, four hundred eighty-eight thousand, six hundred thirty-nine".