2800409486644 has 96 divisors (see below), whose sum is σ = 6122702960640. Its totient is φ = 1088799408000.

The previous prime is 2800409486627. The next prime is 2800409486647. The reversal of 2800409486644 is 4466849040082.

It is a super-2 number, since 2×2800409486644² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2800409486647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 691286419 + ... + 691290469.

It is an arithmetic number, because the mean of its divisors is an integer number (63778155840).

Almost surely, 2^{2800409486644} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2800409486644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3061351480320).

2800409486644 is an abundant number, since it is smaller than the sum of its proper divisors (3322293473996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2800409486644 is a wasteful number, since it uses less digits than its factorization.

2800409486644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8189 (or 8187 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 55.

The spelling of 2800409486644 in words is "two trillion, eight hundred billion, four hundred nine million, four hundred eighty-six thousand, six hundred forty-four".