2044480868861 has 8 divisors (see below), whose sum is σ = 2048594184504. Its totient is φ = 2040368279040.

The previous prime is 2044480868813. The next prime is 2044480868879. The reversal of 2044480868861 is 1688680844402.

It can be written as a sum of positive squares in 4 ways, for example, as 623452368100 + 1421028500761 = 789590^2 + 1192069^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2044480868861 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2044480868861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2044480862861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5645525 + ... + 5996741.

It is an arithmetic number, because the mean of its divisors is an integer number (256074273063).

Almost surely, 2^{2044480868861} is an apocalyptic number.

It is an amenable number.

2044480868861 is a deficient number, since it is larger than the sum of its proper divisors (4113315643).

2044480868861 is a wasteful number, since it uses less digits than its factorization.

2044480868861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362911.

The product of its (nonzero) digits is 18874368, while the sum is 59.

The spelling of 2044480868861 in words is "two trillion, forty-four billion, four hundred eighty million, eight hundred sixty-eight thousand, eight hundred sixty-one".