450251552620 has 48 divisors (see below), whose sum is σ = 968265654048. Its totient is φ = 175776168960.

The previous prime is 450251552593. The next prime is 450251552657. The reversal of 450251552620 is 26255152054.

It is a self number, because there is not a number n which added to its sum of digits gives 450251552620.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 913590 + ... + 1317250.

It is an arithmetic number, because the mean of its divisors is an integer number (20172201126).

Almost surely, 2^450251552620 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 450251552620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (484132827024).

450251552620 is an abundant number, since it is smaller than the sum of its proper divisors (518014101428).

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

450251552620 is a wasteful number, since it uses less digits than its factorization.

450251552620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405010 (or 405008 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 450251552620 in words is "four hundred fifty billion, two hundred fifty-one million, five hundred fifty-two thousand, six hundred twenty".