451230737261720 has 128 divisors (see below), whose sum is σ = 1096901651341440. Its totient is φ = 166069666713600.

The previous prime is 451230737261701. The next prime is 451230737261723. The reversal of 451230737261720 is 27162737032154.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451230737261723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8332796645 + ... + 8332850795.

It is an arithmetic number, because the mean of its divisors is an integer number (8569544151105).

Almost surely, 2^{451230737261720} is an apocalyptic number.

451230737261720 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 451230737261720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548450825670720).

451230737261720 is an abundant number, since it is smaller than the sum of its proper divisors (645670914079720).

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

451230737261720 is a wasteful number, since it uses less digits than its factorization.

451230737261720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105685 (or 105681 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 50.

The spelling of 451230737261720 in words is "four hundred fifty-one trillion, two hundred thirty billion, seven hundred thirty-seven million, two hundred sixty-one thousand, seven hundred twenty".