84444014139 has 4 divisors (see below), whose sum is σ = 112592018856. Its totient is φ = 56296009424.

The previous prime is 84444014129. The next prime is 84444014177. The reversal of 84444014139 is 93141044448.

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 84444014139 - 2¹² = 84444010043 is a prime.

It is a super-2 number, since 2×84444014139² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84444014139.

It is not an unprimeable number, because it can be changed into a prime (84444014129) 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, 14074002354 + ... + 14074002359.

It is an arithmetic number, because the mean of its divisors is an integer number (28148004714).

Almost surely, 2^84444014139 is an apocalyptic number.

84444014139 is a deficient number, since it is larger than the sum of its proper divisors (28148004717).

84444014139 is a wasteful number, since it uses less digits than its factorization.

84444014139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28148004716.

The product of its (nonzero) digits is 221184, while the sum is 42.

The spelling of 84444014139 in words is "eighty-four billion, four hundred forty-four million, fourteen thousand, one hundred thirty-nine".