45345421000 has 128 divisors (see below), whose sum is σ = 116049024000. Its totient is φ = 16447296000.

The previous prime is 45345420961. The next prime is 45345421007. The reversal of 45345421000 is 12454354.

It is a self number, because there is not a number n which added to its sum of digits gives 45345421000.

It is not an unprimeable number, because it can be changed into a prime (45345421007) 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 31 ways as a sum of consecutive naturals, for example, 4493961 + ... + 4504039.

It is an arithmetic number, because the mean of its divisors is an integer number (906633000).

Almost surely, 2^45345421000 is an apocalyptic number.

45345421000 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 45345421000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58024512000).

45345421000 is an abundant number, since it is smaller than the sum of its proper divisors (70703603000).

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

45345421000 is a wasteful number, since it uses less digits than its factorization.

45345421000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10520 (or 10506 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 45345421000 its reverse (12454354), we get a palindrome (45357875354).

The spelling of 45345421000 in words is "forty-five billion, three hundred forty-five million, four hundred twenty-one thousand".