451555105792 has 66 divisors (see below), whose sum is σ = 1031751981032. Its totient is φ = 193499234304.

The previous prime is 451555105789. The next prime is 451555105817. The reversal of 451555105792 is 297501555154.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56888448 + ... + 56896384.

Almost surely, 2^451555105792 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 451555105792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515875990516).

451555105792 is an abundant number, since it is smaller than the sum of its proper divisors (580196875240).

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

451555105792 is an frugal number, since it uses more digits than its factorization.

451555105792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15901 (or 7946 counting only the distinct ones).

The product of its (nonzero) digits is 1575000, while the sum is 49.

The spelling of 451555105792 in words is "four hundred fifty-one billion, five hundred fifty-five million, one hundred five thousand, seven hundred ninety-two".