201424519999 has 4 divisors (see below), whose sum is σ = 201436761064. Its totient is φ = 201412278936.

The previous prime is 201424519969. The next prime is 201424520023. The reversal of 201424519999 is 999915424102.

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 201424519999 - 2²¹ = 201422422847 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 (201424519969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6095817 + ... + 6128770.

It is an arithmetic number, because the mean of its divisors is an integer number (50359190266).

Almost surely, 2^201424519999 is an apocalyptic number.

201424519999 is a deficient number, since it is larger than the sum of its proper divisors (12241065).

201424519999 is a wasteful number, since it uses less digits than its factorization.

201424519999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12241064.

The product of its (nonzero) digits is 2099520, while the sum is 55.

The spelling of 201424519999 in words is "two hundred one billion, four hundred twenty-four million, five hundred nineteen thousand, nine hundred ninety-nine".