12001964723719 has 2 divisors, whose sum is σ = 12001964723720. Its totient is φ = 12001964723718.

The previous prime is 12001964723681. The next prime is 12001964723753. The reversal of 12001964723719 is 91732746910021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12001964723719 - 2¹¹ = 12001964721671 is a prime.

It is a super-2 number, since 2×12001964723719² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12001964723519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000982361859 + 6000982361860.

It is an arithmetic number, because the mean of its divisors is an integer number (6000982361860).

Almost surely, 2^{12001964723719} is an apocalyptic number.

12001964723719 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001964723719 is an equidigital number, since it uses as much as digits as its factorization.

12001964723719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The spelling of 12001964723719 in words is "twelve trillion, one billion, nine hundred sixty-four million, seven hundred twenty-three thousand, seven hundred nineteen".