44464644644 has 48 divisors (see below), whose sum is σ = 94686641280. Its totient is φ = 17835087360.

The previous prime is 44464644589. The next prime is 44464644647. The reversal of 44464644644 is 44644646444.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 44464644592 and 44464644601.

It is not an unprimeable number, because it can be changed into a prime (44464644647) 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, 175727 + ... + 346134.

It is an arithmetic number, because the mean of its divisors is an integer number (1972638360).

Almost surely, 2^44464644644 is an apocalyptic number.

It is an amenable number.

44464644644 is an abundant number, since it is smaller than the sum of its proper divisors (50221996636).

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

44464644644 is a wasteful number, since it uses less digits than its factorization.

44464644644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522068 (or 522066 counting only the distinct ones).

The product of its digits is 14155776, while the sum is 50.

The spelling of 44464644644 in words is "forty-four billion, four hundred sixty-four million, six hundred forty-four thousand, six hundred forty-four".