1368357173824 has 21 divisors (see below), whose sum is σ = 2715352337001. Its totient is φ = 684173907840.

The previous prime is 1368357173801. The next prime is 1368357173831. The reversal of 1368357173824 is 4283717538631.

The square root of 1368357173824 is 1169768.

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

It can be written as a sum of positive squares in only one way, i.e., 925120796224 + 443236377600 = 961832^2 + 665760^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9285034 + ... + 9431254.

Almost surely, 2^{1368357173824} is an apocalyptic number.

1368357173824 is the 1169768-th square number.

It is an amenable number.

1368357173824 is a deficient number, since it is larger than the sum of its proper divisors (1346995163177).

1368357173824 is an frugal number, since it uses more digits than its factorization.

1368357173824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292454 (or 146223 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 58.

The spelling of 1368357173824 in words is "one trillion, three hundred sixty-eight billion, three hundred fifty-seven million, one hundred seventy-three thousand, eight hundred twenty-four".