450681824381646 has 64 divisors (see below), whose sum is σ = 1059047208898560. Its totient is φ = 126052643283840.

The previous prime is 450681824381629. The next prime is 450681824381731. The reversal of 450681824381646 is 646183428186054.

It is a super-2 number, since 2×450681824381646² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16551406 + ... + 34282833.

It is an arithmetic number, because the mean of its divisors is an integer number (16547612639040).

Almost surely, 2^{450681824381646} is an apocalyptic number.

450681824381646 is an abundant number, since it is smaller than the sum of its proper divisors (608365384516914).

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

450681824381646 is a wasteful number, since it uses less digits than its factorization.

450681824381646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50844601.

The product of its (nonzero) digits is 212336640, while the sum is 66.

The spelling of 450681824381646 in words is "four hundred fifty trillion, six hundred eighty-one billion, eight hundred twenty-four million, three hundred eighty-one thousand, six hundred forty-six".