84044626069 has 4 divisors (see below), whose sum is σ = 84045205900. Its totient is φ = 84044046240.

The previous prime is 84044626063. The next prime is 84044626109. The reversal of 84044626069 is 96062644048.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 33582395025 + 50462231044 = 183255^2 + 224638^2 .

It is a cyclic number.

It is not a de Polignac number, because 84044626069 - 2⁹ = 84044625557 is a prime.

It is a super-2 number, since 2×84044626069² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84044626063) 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, 141259 + ... + 433639.

It is an arithmetic number, because the mean of its divisors is an integer number (21011301475).

Almost surely, 2^84044626069 is an apocalyptic number.

It is an amenable number.

84044626069 is a deficient number, since it is larger than the sum of its proper divisors (579831).

84044626069 is a wasteful number, since it uses less digits than its factorization.

84044626069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579830.

The product of its (nonzero) digits is 1990656, while the sum is 49.

The spelling of 84044626069 in words is "eighty-four billion, forty-four million, six hundred twenty-six thousand, sixty-nine".