214143921999 has 24 divisors (see below), whose sum is σ = 357766561152. Its totient is φ = 120893639760.

The previous prime is 214143921997. The next prime is 214143922021. The reversal of 214143921999 is 999129341412.

It is a happy number.

214143921999 is a `hidden beast` number, since 2 + 1 + 414 + 3 + 9 + 219 + 9 + 9 = 666.

It is not a de Polignac number, because 214143921999 - 2¹ = 214143921997 is a prime.

It is a super-2 number, since 2×214143921999² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214143921997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20471337 + ... + 20481794.

It is an arithmetic number, because the mean of its divisors is an integer number (14906940048).

Almost surely, 2^214143921999 is an apocalyptic number.

214143921999 is a deficient number, since it is larger than the sum of its proper divisors (143622639153).

214143921999 is a wasteful number, since it uses less digits than its factorization.

214143921999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40953227 (or 40953224 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The spelling of 214143921999 in words is "two hundred fourteen billion, one hundred forty-three million, nine hundred twenty-one thousand, nine hundred ninety-nine".