7404606444544 has 88 divisors (see below), whose sum is σ = 15302125377000. Its totient is φ = 3578863288320.

The previous prime is 7404606444509. The next prime is 7404606444577. The reversal of 7404606444544 is 4454446064047.

It can be written as a sum of positive squares in 4 ways, for example, as 133429478400 + 7271176966144 = 365280^2 + 2696512^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7404606444491 and 7404606444500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3767232 + ... + 5385280.

It is an arithmetic number, because the mean of its divisors is an integer number (173887788375).

Almost surely, 2^{7404606444544} 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 7404606444544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7651062688500).

7404606444544 is an abundant number, since it is smaller than the sum of its proper divisors (7897518932456).

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

7404606444544 is a wasteful number, since it uses less digits than its factorization.

7404606444544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618219 (or 1618201 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 52.

The spelling of 7404606444544 in words is "seven trillion, four hundred four billion, six hundred six million, four hundred forty-four thousand, five hundred forty-four".