1167125872897 has 4 divisors (see below), whose sum is σ = 1167149302276. Its totient is φ = 1167102443520.

The previous prime is 1167125872877. The next prime is 1167125872901. The reversal of 1167125872897 is 7982785217611.

It is a Cunningham number, because it is equal to 1080336²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1029218366016 + 137907506881 = 1014504^2 + 371359^2 .

It is a cyclic number.

It is not a de Polignac number, because 1167125872897 - 2²³ = 1167117484289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1167125872877) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11639808 + ... + 11739649.

It is an arithmetic number, because the mean of its divisors is an integer number (291787325569).

Almost surely, 2^{1167125872897} is an apocalyptic number.

It is an amenable number.

1167125872897 is a deficient number, since it is larger than the sum of its proper divisors (23429379).

1167125872897 is an equidigital number, since it uses as much as digits as its factorization.

1167125872897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23429378.

The product of its digits is 23708160, while the sum is 64.

The spelling of 1167125872897 in words is "one trillion, one hundred sixty-seven billion, one hundred twenty-five million, eight hundred seventy-two thousand, eight hundred ninety-seven".