2143506224999 has 4 divisors (see below), whose sum is σ = 2143524192336. Its totient is φ = 2143488257664.

The previous prime is 2143506224969. The next prime is 2143506225019. The reversal of 2143506224999 is 9994226053412.

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 2143506224999 - 2¹⁶ = 2143506159463 is a prime.

It is a super-2 number, since 2×2143506224999² (a number of 25 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 (2143506224969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8803514 + ... + 9043719.

It is an arithmetic number, because the mean of its divisors is an integer number (535881048084).

Almost surely, 2^{2143506224999} is an apocalyptic number.

2143506224999 is a deficient number, since it is larger than the sum of its proper divisors (17967337).

2143506224999 is a wasteful number, since it uses less digits than its factorization.

2143506224999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17967336.

The product of its (nonzero) digits is 8398080, while the sum is 56.

The spelling of 2143506224999 in words is "two trillion, one hundred forty-three billion, five hundred six million, two hundred twenty-four thousand, nine hundred ninety-nine".