243747404747342 has 4 divisors (see below), whose sum is σ = 365621107121016. Its totient is φ = 121873702373670.

The previous prime is 243747404747339. The next prime is 243747404747369.

243747404747342 is nontrivially palindromic in base 10.

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

It is a super-2 number, since 2×243747404747342² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60936851186834 + ... + 60936851186837.

It is an arithmetic number, because the mean of its divisors is an integer number (91405276780254).

Almost surely, 2^{243747404747342} is an apocalyptic number.

243747404747342 is a deficient number, since it is larger than the sum of its proper divisors (121873702373674).

243747404747342 is a wasteful number, since it uses less digits than its factorization.

243747404747342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121873702373673.

The product of its (nonzero) digits is 354041856, while the sum is 62.

The spelling of 243747404747342 in words is "two hundred forty-three trillion, seven hundred forty-seven billion, four hundred four million, seven hundred forty-seven thousand, three hundred forty-two".