13444564740 has 48 divisors (see below), whose sum is σ = 37783737600. Its totient is φ = 3571983360.

The previous prime is 13444564709. The next prime is 13444564741. The reversal of 13444564740 is 4746544431.

It is a junction number, because it is equal to n+sod(n) for n = 13444564692 and 13444564701.

It is not an unprimeable number, because it can be changed into a prime (13444564741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397165 + ... + 429684.

It is an arithmetic number, because the mean of its divisors is an integer number (787161200).

Almost surely, 2^13444564740 is an apocalyptic number.

13444564740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13444564740 is an abundant number, since it is smaller than the sum of its proper divisors (24339172860).

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

13444564740 is a wasteful number, since it uses less digits than its factorization.

13444564740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827132 (or 827130 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 42.

The spelling of 13444564740 in words is "thirteen billion, four hundred forty-four million, five hundred sixty-four thousand, seven hundred forty".