4439997876869 has 2 divisors, whose sum is σ = 4439997876870. Its totient is φ = 4439997876868.

The previous prime is 4439997876859. The next prime is 4439997876871. The reversal of 4439997876869 is 9686787999344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3275875563844 + 1164122313025 = 1809938^2 + 1078945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4439997876869 is a prime.

It is a super-2 number, since 2×4439997876869² (a number of 26 digits) contains 22 as substring.

Together with 4439997876871, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4439997876859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2219998938434 + 2219998938435.

It is an arithmetic number, because the mean of its divisors is an integer number (2219998938435).

Almost surely, 2^{4439997876869} is an apocalyptic number.

It is an amenable number.

4439997876869 is a deficient number, since it is larger than the sum of its proper divisors (1).

4439997876869 is an equidigital number, since it uses as much as digits as its factorization.

4439997876869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35554111488, while the sum is 89.

The spelling of 4439997876869 in words is "four trillion, four hundred thirty-nine billion, nine hundred ninety-seven million, eight hundred seventy-six thousand, eight hundred sixty-nine".