45131032032 has 96 divisors (see below), whose sum is σ = 124714453248. Its totient is φ = 14262183936.

The previous prime is 45131032019. The next prime is 45131032087. The reversal of 45131032032 is 23023013154.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 45131031993 and 45131032011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159063 + ... + 339945.

It is an arithmetic number, because the mean of its divisors is an integer number (1299108888).

Almost surely, 2^45131032032 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 45131032032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62357226624).

45131032032 is an abundant number, since it is smaller than the sum of its proper divisors (79583421216).

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

45131032032 is a wasteful number, since it uses less digits than its factorization.

45131032032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181032 (or 181024 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 45131032032 its reverse (23023013154), we get a palindrome (68154045186).

The spelling of 45131032032 in words is "forty-five billion, one hundred thirty-one million, thirty-two thousand, thirty-two".