45001440000 has 720 divisors, whose sum is σ = 181602368640. Its totient is φ = 10897920000.

The previous prime is 45001439947. The next prime is 45001440109. The reversal of 45001440000 is 4410054.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 47519527 + ... + 47520473.

It is an arithmetic number, because the mean of its divisors is an integer number (252225512).

Almost surely, 2^45001440000 is an apocalyptic number.

45001440000 is a gapful number since it is divisible by the number (40) 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 45001440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90801184320).

45001440000 is an abundant number, since it is smaller than the sum of its proper divisors (136600928640).

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

45001440000 is an equidigital number, since it uses as much as digits as its factorization.

45001440000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

Adding to 45001440000 its reverse (4410054), we get a palindrome (45005850054).

The spelling of 45001440000 in words is "forty-five billion, one million, four hundred forty thousand".