243987343474 has 16 divisors (see below), whose sum is σ = 418280106816. Its totient is φ = 104561982000.

The previous prime is 243987343433. The next prime is 243987343493. The reversal of 243987343474 is 474343789342.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57624 + ... + 700924.

It is an arithmetic number, because the mean of its divisors is an integer number (26142506676).

Almost surely, 2^243987343474 is an apocalyptic number.

243987343474 is a deficient number, since it is larger than the sum of its proper divisors (174292763342).

243987343474 is a wasteful number, since it uses less digits than its factorization.

243987343474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670401.

The product of its digits is 48771072, while the sum is 58.

The spelling of 243987343474 in words is "two hundred forty-three billion, nine hundred eighty-seven million, three hundred forty-three thousand, four hundred seventy-four".