453738829479420 has 144 divisors (see below), whose sum is σ = 1312843915837440. Its totient is φ = 117087620734080.

The previous prime is 453738829479373. The next prime is 453738829479443. The reversal of 453738829479420 is 24974928837354.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1128954861 + ... + 1129356699.

It is an arithmetic number, because the mean of its divisors is an integer number (9116971637760).

Almost surely, 2^{453738829479420} 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 453738829479420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (656421957918720).

453738829479420 is an abundant number, since it is smaller than the sum of its proper divisors (859105086358020).

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

453738829479420 is a wasteful number, since it uses less digits than its factorization.

453738829479420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421496 (or 421463 counting only the distinct ones).

The product of its (nonzero) digits is 2926264320, while the sum is 75.

The spelling of 453738829479420 in words is "four hundred fifty-three trillion, seven hundred thirty-eight billion, eight hundred twenty-nine million, four hundred seventy-nine thousand, four hundred twenty".