44020479869 has 2 divisors, whose sum is σ = 44020479870. Its totient is φ = 44020479868.

The previous prime is 44020479803. The next prime is 44020479959. The reversal of 44020479869 is 96897402044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25704105625 + 18316374244 = 160325^2 + 135338^2 .

It is a cyclic number.

It is not a de Polignac number, because 44020479869 - 2²⁰ = 44019431293 is a prime.

It is a super-2 number, since 2×44020479869² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 44020479869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44020479169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22010239934 + 22010239935.

It is an arithmetic number, because the mean of its divisors is an integer number (22010239935).

Almost surely, 2^44020479869 is an apocalyptic number.

It is an amenable number.

44020479869 is a deficient number, since it is larger than the sum of its proper divisors (1).

44020479869 is an equidigital number, since it uses as much as digits as its factorization.

44020479869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 44020479869 in words is "forty-four billion, twenty million, four hundred seventy-nine thousand, eight hundred sixty-nine".