1172983361905 has 16 divisors (see below), whose sum is σ = 1444441521600. Its totient is φ = 913937427648.

The previous prime is 1172983361897. The next prime is 1172983361917. The reversal of 1172983361905 is 5091633892711.

It is a cyclic number.

It is not a de Polignac number, because 1172983361905 - 2³ = 1172983361897 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7741207 + ... + 7891276.

It is an arithmetic number, because the mean of its divisors is an integer number (90277595100).

Almost surely, 2^{1172983361905} is an apocalyptic number.

It is an amenable number.

1172983361905 is a deficient number, since it is larger than the sum of its proper divisors (271458159695).

1172983361905 is a wasteful number, since it uses less digits than its factorization.

1172983361905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15632880.

The product of its (nonzero) digits is 2449440, while the sum is 55.

The spelling of 1172983361905 in words is "one trillion, one hundred seventy-two billion, nine hundred eighty-three million, three hundred sixty-one thousand, nine hundred five".