999472950384133 has 4 divisors (see below), whose sum is σ = 999473023394560. Its totient is φ = 999472877373708.

The previous prime is 999472950384109. The next prime is 999472950384163. The reversal of 999472950384133 is 331483059274999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a 3-Lehmer number, since φ(999472950384133) divides (999472950384133-1)³.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999472950384133 is a prime.

It is a deceptive number, since it divides R_{999472950384132}.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 999472950384133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999472950384163) 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, 9126303 + ... + 45631516.

It is an arithmetic number, because the mean of its divisors is an integer number (249868255848640).

It is a Poulet number, since it divides 2^{999472950384132}-1.

Almost surely, 2^{999472950384133} is an apocalyptic number.

999472950384133 is the 18252607-th octagonal number.

It is an amenable number.

999472950384133 is a deficient number, since it is larger than the sum of its proper divisors (73010427).

999472950384133 is a wasteful number, since it uses less digits than its factorization.

999472950384133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73010426.

The product of its (nonzero) digits is 1587237120, while the sum is 76.

The spelling of 999472950384133 in words is "nine hundred ninety-nine trillion, four hundred seventy-two billion, nine hundred fifty million, three hundred eighty-four thousand, one hundred thirty-three".