3784444444873 has 4 divisors (see below), whose sum is σ = 3786356748240. Its totient is φ = 3782532141508.

The previous prime is 3784444444871. The next prime is 3784444444877.

It is a happy number.

3784444444873 is nontrivially palindromic in base 10.

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.

It is a cyclic number.

It is not a de Polignac number, because 3784444444873 - 2¹ = 3784444444871 is a prime.

It is a super-2 number, since 2×3784444444873² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3784444444871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 956148715 + ... + 956152672.

It is an arithmetic number, because the mean of its divisors is an integer number (946589187060).

Almost surely, 2^{3784444444873} is an apocalyptic number.

It is an amenable number.

3784444444873 is a deficient number, since it is larger than the sum of its proper divisors (1912303367).

3784444444873 is a wasteful number, since it uses less digits than its factorization.

3784444444873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912303366.

The product of its digits is 462422016, while the sum is 64.

The spelling of 3784444444873 in words is "three trillion, seven hundred eighty-four billion, four hundred forty-four million, four hundred forty-four thousand, eight hundred seventy-three".