12943797867001 has 3 divisors (see below), whose sum is σ = 12943801464751. Its totient is φ = 12943794269252.

The previous prime is 12943797866917. The next prime is 12943797867037. The reversal of 12943797867001 is 10076879734921.

It is a happy number.

The square root of 12943797867001 is 3597749.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 12847213658601 + 96584208400 = 3584301^2 + 310780^2 .

It is not a de Polignac number, because 12943797867001 - 2¹³ = 12943797858809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12943797867101) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1798875 + ... + 5396623.

Almost surely, 2^{12943797867001} is an apocalyptic number.

12943797867001 is the 3597749-th square number.

12943797867001 is the 1798875-th centered octagonal number.

It is an amenable number.

12943797867001 is a deficient number, since it is larger than the sum of its proper divisors (3597750).

12943797867001 is an frugal number, since it uses more digits than its factorization.

12943797867001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7195498 (or 3597749 counting only the distinct ones).

The product of its (nonzero) digits is 32006016, while the sum is 64.

Multiplying 12943797867001 by its sum of digits (64), we get a square (828403063488064 = 28781992²).

The spelling of 12943797867001 in words is "twelve trillion, nine hundred forty-three billion, seven hundred ninety-seven million, eight hundred sixty-seven thousand, one".