453958446640 has 80 divisors (see below), whose sum is σ = 1073995322400. Its totient is φ = 178397116416.

The previous prime is 453958446589. The next prime is 453958446649. The reversal of 453958446640 is 46644859354.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (453958446649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7962556 + ... + 8019364.

It is an arithmetic number, because the mean of its divisors is an integer number (13424941530).

Almost surely, 2^453958446640 is an apocalyptic number.

453958446640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 453958446640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (536997661200).

453958446640 is an abundant number, since it is smaller than the sum of its proper divisors (620036875760).

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

453958446640 is a wasteful number, since it uses less digits than its factorization.

453958446640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58574 (or 58568 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 58.

The spelling of 453958446640 in words is "four hundred fifty-three billion, nine hundred fifty-eight million, four hundred forty-six thousand, six hundred forty".