44613031644 has 72 divisors (see below), whose sum is σ = 120855440160. Its totient is φ = 13839990912.

The previous prime is 44613031537. The next prime is 44613031649.

44613031644 is a `hidden beast` number, since 4 + 4 + 6 + 1 + 3 + 0 + 3 + 1 + 644 = 666.

44613031644 is nontrivially palindromic in base 10.

44613031644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 44613031599 and 44613031608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44613031649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 697479 + ... + 758750.

It is an arithmetic number, because the mean of its divisors is an integer number (1678547780).

Almost surely, 2^44613031644 is an apocalyptic number.

It is an amenable number.

44613031644 is an abundant number, since it is smaller than the sum of its proper divisors (76242408516).

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

44613031644 is a wasteful number, since it uses less digits than its factorization.

44613031644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456299 (or 1456294 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

It can be divided in two parts, 446130 and 31644, that added together give a palindrome (477774).

The spelling of 44613031644 in words is "forty-four billion, six hundred thirteen million, thirty-one thousand, six hundred forty-four".