1368704081856 has 112 divisors (see below), whose sum is σ = 3744669086720. Its totient is φ = 440751144960.

The previous prime is 1368704081837. The next prime is 1368704081869. The reversal of 1368704081856 is 6581804078631.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1368704081796 and 1368704081805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3235035 + ... + 3633573.

Almost surely, 2^{1368704081856} is an apocalyptic number.

1368704081856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1368704081856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1872334543360).

1368704081856 is an abundant number, since it is smaller than the sum of its proper divisors (2375965004864).

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

1368704081856 is a wasteful number, since it uses less digits than its factorization.

1368704081856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399162 (or 399152 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 1368704081856 in words is "one trillion, three hundred sixty-eight billion, seven hundred four million, eighty-one thousand, eight hundred fifty-six".