12946497822719 has 4 divisors (see below), whose sum is σ = 13091964090480. Its totient is φ = 12801031554960.

The previous prime is 12946497822703. The next prime is 12946497822751. The reversal of 12946497822719 is 91722879464921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12946497822719 - 2⁴ = 12946497822703 is a prime.

It is a super-2 number, since 2×12946497822719² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12946497822799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72733133747 + ... + 72733133924.

It is an arithmetic number, because the mean of its divisors is an integer number (3272991022620).

Almost surely, 2^{12946497822719} is an apocalyptic number.

12946497822719 is a deficient number, since it is larger than the sum of its proper divisors (145466267761).

12946497822719 is an equidigital number, since it uses as much as digits as its factorization.

12946497822719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145466267760.

The product of its digits is 219469824, while the sum is 71.

The spelling of 12946497822719 in words is "twelve trillion, nine hundred forty-six billion, four hundred ninety-seven million, eight hundred twenty-two thousand, seven hundred nineteen".