44645454644 has 48 divisors (see below), whose sum is σ = 92571050880. Its totient is φ = 18433752960.

The previous prime is 44645454613. The next prime is 44645454661.

44645454644 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×44645454644² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44645454592 and 44645454601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314699 + ... + 433965.

It is an arithmetic number, because the mean of its divisors is an integer number (1928563560).

Almost surely, 2^44645454644 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 44645454644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46285525440).

44645454644 is an abundant number, since it is smaller than the sum of its proper divisors (47925596236).

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

44645454644 is a wasteful number, since it uses less digits than its factorization.

44645454644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119768 (or 119766 counting only the distinct ones).

The product of its digits is 14745600, while the sum is 50.

The spelling of 44645454644 in words is "forty-four billion, six hundred forty-five million, four hundred fifty-four thousand, six hundred forty-four".