1240113868816 has 45 divisors (see below), whose sum is σ = 2416582630431. Its totient is φ = 616500083232.

The previous prime is 1240113868781. The next prime is 1240113868817. The reversal of 1240113868816 is 6188683110421.

The square root of 1240113868816 is 1113604.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1240113868816.

It is not an unprimeable number, because it can be changed into a prime (1240113868817) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 886428085 + ... + 886429483.

Almost surely, 2^{1240113868816} is an apocalyptic number.

1240113868816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1240113868816 is the 1113604-th square number.

It is an amenable number.

1240113868816 is a deficient number, since it is larger than the sum of its proper divisors (1176468761615).

1240113868816 is an frugal number, since it uses more digits than its factorization.

1240113868816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204 (or 1600 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 49.

Multiplying 1240113868816 by its sum of digits (49), we get a square (60765579571984 = 7795228²).

The spelling of 1240113868816 in words is "one trillion, two hundred forty billion, one hundred thirteen million, eight hundred sixty-eight thousand, eight hundred sixteen".