1168621536784 has 45 divisors (see below), whose sum is σ = 2451889383303. Its totient is φ = 539337841536.

The previous prime is 1168621536757. The next prime is 1168621536809. The reversal of 1168621536784 is 4876351268611.

The square root of 1168621536784 is 1081028.

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

It can be written as a sum of positive squares in 4 ways, for example, as 2498000400 + 1166123536384 = 49980^2 + 1079872^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 56203062 + ... + 56223850.

Almost surely, 2^{1168621536784} is an apocalyptic number.

1168621536784 is the 1081028-th square number.

It is an amenable number.

1168621536784 is an abundant number, since it is smaller than the sum of its proper divisors (1283267846519).

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

1168621536784 is an frugal number, since it uses more digits than its factorization.

1168621536784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41612 (or 20804 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 58.

The spelling of 1168621536784 in words is "one trillion, one hundred sixty-eight billion, six hundred twenty-one million, five hundred thirty-six thousand, seven hundred eighty-four".