7143664639999 has 16 divisors (see below), whose sum is σ = 7292240400384. Its totient is φ = 6995610180000.

The previous prime is 7143664639981. The next prime is 7143664640039. The reversal of 7143664639999 is 9999364663417.

It is a cyclic number.

It is not a de Polignac number, because 7143664639999 - 2³⁹ = 6593908826111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7143664639399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72033682 + ... + 72132784.

It is an arithmetic number, because the mean of its divisors is an integer number (455765025024).

Almost surely, 2^{7143664639999} is an apocalyptic number.

7143664639999 is a deficient number, since it is larger than the sum of its proper divisors (148575760385).

7143664639999 is a wasteful number, since it uses less digits than its factorization.

7143664639999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101718.

The product of its digits is 1428513408, while the sum is 76.

The spelling of 7143664639999 in words is "seven trillion, one hundred forty-three billion, six hundred sixty-four million, six hundred thirty-nine thousand, nine hundred ninety-nine".