444725161782167 has 12 divisors (see below), whose sum is σ = 508851091385520. Its totient is φ = 380748192116736.

The previous prime is 444725161782119. The next prime is 444725161782191. The reversal of 444725161782167 is 761287161527444.

It is a happy number.

It is not a de Polignac number, because 444725161782167 - 2¹² = 444725161778071 is a prime.

It is a super-2 number, since 2×444725161782167² (a number of 30 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (65) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444725161782107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38110442 + ... + 48392727.

It is an arithmetic number, because the mean of its divisors is an integer number (42404257615460).

Almost surely, 2^{444725161782167} is an apocalyptic number.

444725161782167 is a deficient number, since it is larger than the sum of its proper divisors (64125929603353).

444725161782167 is an frugal number, since it uses more digits than its factorization.

444725161782167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86504890 (or 86504033 counting only the distinct ones).

The product of its digits is 126443520, while the sum is 65.

The spelling of 444725161782167 in words is "four hundred forty-four trillion, seven hundred twenty-five billion, one hundred sixty-one million, seven hundred eighty-two thousand, one hundred sixty-seven".