454521651808 has 96 divisors (see below), whose sum is σ = 1057242654720. Its totient is φ = 188229242880.

The previous prime is 454521651797. The next prime is 454521651841. The reversal of 454521651808 is 808156125454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4624683 + ... + 4721941.

It is an arithmetic number, because the mean of its divisors is an integer number (11012944320).

Almost surely, 2^454521651808 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 454521651808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (528621327360).

454521651808 is an abundant number, since it is smaller than the sum of its proper divisors (602721002912).

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

454521651808 is a wasteful number, since it uses less digits than its factorization.

454521651808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97980 (or 97972 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 49.

The spelling of 454521651808 in words is "four hundred fifty-four billion, five hundred twenty-one million, six hundred fifty-one thousand, eight hundred eight".