451201053780 has 144 divisors (see below), whose sum is σ = 1419774667584. Its totient is φ = 120282900480.

The previous prime is 451201053757. The next prime is 451201053827. The reversal of 451201053780 is 87350102154.

451201053780 is a `hidden beast` number, since 4 + 512 + 0 + 10 + 53 + 7 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17925684 + ... + 17950836.

Almost surely, 2^451201053780 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 451201053780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (709887333792).

451201053780 is an abundant number, since it is smaller than the sum of its proper divisors (968573613804).

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

451201053780 is a wasteful number, since it uses less digits than its factorization.

451201053780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28868 (or 28854 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The spelling of 451201053780 in words is "four hundred fifty-one billion, two hundred one million, fifty-three thousand, seven hundred eighty".