999134222431999 has 4 divisors (see below), whose sum is σ = 1004715977864760. Its totient is φ = 993552466999240.

The previous prime is 999134222431951. The next prime is 999134222432077.

999134222431999 is nontrivially palindromic in base 10.

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 999134222431999 - 2¹⁹ = 999134221907711 is a prime.

It is a Smith number, since the sum of its digits (76) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999134222431099) 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, 2790877716112 + ... + 2790877716469.

It is an arithmetic number, because the mean of its divisors is an integer number (251178994466190).

Almost surely, 2^{999134222431999} is an apocalyptic number.

999134222431999 is a deficient number, since it is larger than the sum of its proper divisors (5581755432761).

999134222431999 is a wasteful number, since it uses less digits than its factorization.

999134222431999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5581755432760.

The product of its digits is 612220032, while the sum is 76.

The spelling of 999134222431999 in words is "nine hundred ninety-nine trillion, one hundred thirty-four billion, two hundred twenty-two million, four hundred thirty-one thousand, nine hundred ninety-nine".