243574642029 has 4 divisors (see below), whose sum is σ = 324766189376. Its totient is φ = 162383094684.

The previous prime is 243574641983. The next prime is 243574642033. The reversal of 243574642029 is 920246475342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 243574642029 - 2⁷ = 243574641901 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 (243574642049) 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, 40595773669 + ... + 40595773674.

It is an arithmetic number, because the mean of its divisors is an integer number (81191547344).

Almost surely, 2^243574642029 is an apocalyptic number.

It is an amenable number.

243574642029 is a deficient number, since it is larger than the sum of its proper divisors (81191547347).

243574642029 is an equidigital number, since it uses as much as digits as its factorization.

243574642029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81191547346.

The product of its (nonzero) digits is 2903040, while the sum is 48.

The spelling of 243574642029 in words is "two hundred forty-three billion, five hundred seventy-four million, six hundred forty-two thousand, twenty-nine".