744509889660 has 48 divisors (see below), whose sum is σ = 2084905178496. Its totient is φ = 198509543232.

The previous prime is 744509889659. The next prime is 744509889661. The reversal of 744509889660 is 66988905447.

It is an interprime number because it is at equal distance from previous prime (744509889659) and next prime (744509889661).

It is a junction number, because it is equal to n+sod(n) for n = 744509889591 and 744509889600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744509889661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369262 + ... + 1274901.

It is an arithmetic number, because the mean of its divisors is an integer number (43435524552).

Almost surely, 2^744509889660 is an apocalyptic number.

It is an amenable number.

744509889660 is an abundant number, since it is smaller than the sum of its proper divisors (1340395288836).

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

744509889660 is a wasteful number, since it uses less digits than its factorization.

744509889660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651722 (or 1651720 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 66.

The spelling of 744509889660 in words is "seven hundred forty-four billion, five hundred nine million, eight hundred eighty-nine thousand, six hundred sixty".