45173322432 has 448 divisors, whose sum is σ = 157579161600. Its totient is φ = 12421693440.

The previous prime is 45173322413. The next prime is 45173322433. The reversal of 45173322432 is 23422337154.

It is a tau number, because it is divible by the number of its divisors (448).

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

It is not an unprimeable number, because it can be changed into a prime (45173322433) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39178368 + ... + 39179520.

It is an arithmetic number, because the mean of its divisors is an integer number (351739200).

Almost surely, 2^45173322432 is an apocalyptic number.

45173322432 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45173322432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78789580800).

45173322432 is an abundant number, since it is smaller than the sum of its proper divisors (112405839168).

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

45173322432 is a wasteful number, since it uses less digits than its factorization.

45173322432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1285 counting only the distinct ones).

The product of its digits is 120960, while the sum is 36.

Adding to 45173322432 its reverse (23422337154), we get a palindrome (68595659586).

The spelling of 45173322432 in words is "forty-five billion, one hundred seventy-three million, three hundred twenty-two thousand, four hundred thirty-two".