243452131794 has 160 divisors (see below), whose sum is σ = 574396331520. Its totient is φ = 76968403200.

The previous prime is 243452131789. The next prime is 243452131801. The reversal of 243452131794 is 497131254342.

243452131794 is a `hidden beast` number, since 2 + 4 + 3 + 4 + 521 + 31 + 7 + 94 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 95883777 + ... + 95886315.

It is an arithmetic number, because the mean of its divisors is an integer number (3589977072).

Almost surely, 2^243452131794 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243452131794, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287198165760).

243452131794 is an abundant number, since it is smaller than the sum of its proper divisors (330944199726).

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

243452131794 is a wasteful number, since it uses less digits than its factorization.

243452131794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2958 (or 2949 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The spelling of 243452131794 in words is "two hundred forty-three billion, four hundred fifty-two million, one hundred thirty-one thousand, seven hundred ninety-four".