45148402728 has 576 divisors, whose sum is σ = 154846036800. Its totient is φ = 12221539200.

The previous prime is 45148402727. The next prime is 45148402801. The reversal of 45148402728 is 82720484154.

It is not an unprimeable number, because it can be changed into a prime (45148402727) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1456400073 + ... + 1456400103.

It is an arithmetic number, because the mean of its divisors is an integer number (268829925).

Almost surely, 2^45148402728 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 45148402728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77423018400).

45148402728 is an abundant number, since it is smaller than the sum of its proper divisors (109697634072).

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

45148402728 is a wasteful number, since it uses less digits than its factorization.

45148402728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 45.

The spelling of 45148402728 in words is "forty-five billion, one hundred forty-eight million, four hundred two thousand, seven hundred twenty-eight".