243109715460 has 24 divisors (see below), whose sum is σ = 680707203456. Its totient is φ = 64829257440.

The previous prime is 243109715437. The next prime is 243109715489. The reversal of 243109715460 is 64517901342.

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, 2025914236 + ... + 2025914355.

It is an arithmetic number, because the mean of its divisors is an integer number (28362800144).

Almost surely, 2^243109715460 is an apocalyptic number.

243109715460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243109715460 is an abundant number, since it is smaller than the sum of its proper divisors (437597487996).

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

243109715460 is a wasteful number, since it uses less digits than its factorization.

243109715460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4051828603 (or 4051828601 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 243109715460 in words is "two hundred forty-three billion, one hundred nine million, seven hundred fifteen thousand, four hundred sixty".