451323086616 has 144 divisors (see below), whose sum is σ = 1292076826560. Its totient is φ = 142299469440.

The previous prime is 451323086611. The next prime is 451323086633. The reversal of 451323086616 is 616680323154.

451323086616 is a `hidden beast` number, since 4 + 5 + 1 + 3 + 23 + 0 + 8 + 6 + 616 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451323086611) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 16959481 + ... + 16986071.

It is an arithmetic number, because the mean of its divisors is an integer number (8972755740).

Almost surely, 2^451323086616 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 451323086616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (646038413280).

451323086616 is an abundant number, since it is smaller than the sum of its proper divisors (840753739944).

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

451323086616 is a wasteful number, since it uses less digits than its factorization.

451323086616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27294 (or 27268 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 451323086616 in words is "four hundred fifty-one billion, three hundred twenty-three million, eighty-six thousand, six hundred sixteen".