45444319732 has 72 divisors (see below), whose sum is σ = 94484184704. Its totient is φ = 18733970304.

The previous prime is 45444319727. The next prime is 45444319733. The reversal of 45444319732 is 23791344454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45444319733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6519313 + ... + 6526279.

Almost surely, 2^45444319732 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 45444319732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47242092352).

45444319732 is an abundant number, since it is smaller than the sum of its proper divisors (49039864972).

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

45444319732 is a wasteful number, since it uses less digits than its factorization.

45444319732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7313 (or 7282 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 46.

The spelling of 45444319732 in words is "forty-five billion, four hundred forty-four million, three hundred nineteen thousand, seven hundred thirty-two".