243115820680 has 32 divisors (see below), whose sum is σ = 547175707200. Its totient is φ = 97216975296.

The previous prime is 243115820663. The next prime is 243115820723. The reversal of 243115820680 is 86028511342.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 782862 + ... + 1048381.

It is an arithmetic number, because the mean of its divisors is an integer number (17099240850).

Almost surely, 2^243115820680 is an apocalyptic number.

243115820680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243115820680 is an abundant number, since it is smaller than the sum of its proper divisors (304059886520).

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

243115820680 is a wasteful number, since it uses less digits than its factorization.

243115820680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834573 (or 1834569 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 243115820680 in words is "two hundred forty-three billion, one hundred fifteen million, eight hundred twenty thousand, six hundred eighty".