42313643453 has 4 divisors (see below), whose sum is σ = 42376145820. Its totient is φ = 42251141088.

The previous prime is 42313643429. The next prime is 42313643459. The reversal of 42313643453 is 35434631324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41762192164 + 551451289 = 204358^2 + 23483^2 .

It is a cyclic number.

It is not a de Polignac number, because 42313643453 - 2⁶ = 42313643389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42313643459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31250168 + ... + 31251521.

It is an arithmetic number, because the mean of its divisors is an integer number (10594036455).

Almost surely, 2^42313643453 is an apocalyptic number.

It is an amenable number.

42313643453 is a deficient number, since it is larger than the sum of its proper divisors (62502367).

42313643453 is an equidigital number, since it uses as much as digits as its factorization.

42313643453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62502366.

The product of its digits is 311040, while the sum is 38.

The spelling of 42313643453 in words is "forty-two billion, three hundred thirteen million, six hundred forty-three thousand, four hundred fifty-three".