1243705881608 has 48 divisors (see below), whose sum is σ = 2441556487680. Its totient is φ = 593316612000.

The previous prime is 1243705881601. The next prime is 1243705881659. The reversal of 1243705881608 is 8061885073421.

It is a self number, because there is not a number n which added to its sum of digits gives 1243705881608.

It is not an unprimeable number, because it can be changed into a prime (1243705881601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 752753 + ... + 1747583.

It is an arithmetic number, because the mean of its divisors is an integer number (50865760160).

Almost surely, 2^{1243705881608} is an apocalyptic number.

It is an amenable number.

1243705881608 is a deficient number, since it is larger than the sum of its proper divisors (1197850606072).

1243705881608 is an equidigital number, since it uses as much as digits as its factorization.

1243705881608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995010 (or 994935 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 53.

The spelling of 1243705881608 in words is "one trillion, two hundred forty-three billion, seven hundred five million, eight hundred eighty-one thousand, six hundred eight".