243717717342 has 32 divisors (see below), whose sum is σ = 532487416320. Its totient is φ = 73751121920.

The previous prime is 243717717337. The next prime is 243717717361.

243717717342 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 243717717291 and 243717717300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2520483 + ... + 2615390.

It is an arithmetic number, because the mean of its divisors is an integer number (16640231760).

Almost surely, 2^243717717342 is an apocalyptic number.

243717717342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243717717342 is an abundant number, since it is smaller than the sum of its proper divisors (288769698978).

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

243717717342 is a wasteful number, since it uses less digits than its factorization.

243717717342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5136608.

The product of its digits is 1382976, while the sum is 48.

The spelling of 243717717342 in words is "two hundred forty-three billion, seven hundred seventeen million, seven hundred seventeen thousand, three hundred forty-two".