454245012520 has 128 divisors (see below), whose sum is σ = 1138781952000. Its totient is φ = 161938621440.

The previous prime is 454245012511. The next prime is 454245012581. The reversal of 454245012520 is 25210542454.

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 31 ways as a sum of consecutive naturals, for example, 7044586 + ... + 7108774.

It is an arithmetic number, because the mean of its divisors is an integer number (8896734000).

Almost surely, 2^454245012520 is an apocalyptic number.

454245012520 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 454245012520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569390976000).

454245012520 is an abundant number, since it is smaller than the sum of its proper divisors (684536939480).

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

454245012520 is a wasteful number, since it uses less digits than its factorization.

454245012520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64683 (or 64679 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 34.

Adding to 454245012520 its reverse (25210542454), we get a palindrome (479455554974).

The spelling of 454245012520 in words is "four hundred fifty-four billion, two hundred forty-five million, twelve thousand, five hundred twenty".