12041645639 has 2 divisors, whose sum is σ = 12041645640. Its totient is φ = 12041645638.

The previous prime is 12041645591. The next prime is 12041645687. The reversal of 12041645639 is 93654614021.

It is a balanced prime because it is at equal distance from previous prime (12041645591) and next prime (12041645687).

It is a cyclic number.

It is not a de Polignac number, because 12041645639 - 2⁸ = 12041645383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12041645596 and 12041645605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12041645689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6020822819 + 6020822820.

It is an arithmetic number, because the mean of its divisors is an integer number (6020822820).

Almost surely, 2^12041645639 is an apocalyptic number.

12041645639 is a deficient number, since it is larger than the sum of its proper divisors (1).

12041645639 is an equidigital number, since it uses as much as digits as its factorization.

12041645639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 12041645639 in words is "twelve billion, forty-one million, six hundred forty-five thousand, six hundred thirty-nine".