1172697640706 has 4 divisors (see below), whose sum is σ = 1759046461062. Its totient is φ = 586348820352.

The previous prime is 1172697640663. The next prime is 1172697640801. The reversal of 1172697640706 is 6070467962711.

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

It can be written as a sum of positive squares in only one way, i.e., 712857687481 + 459839953225 = 844309^2 + 678115^2 .

It is a Curzon number.

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 as a sum of consecutive naturals, namely, 293174410175 + ... + 293174410178.

Almost surely, 2^{1172697640706} is an apocalyptic number.

1172697640706 is a deficient number, since it is larger than the sum of its proper divisors (586348820356).

1172697640706 is an equidigital number, since it uses as much as digits as its factorization.

1172697640706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586348820355.

The product of its (nonzero) digits is 5334336, while the sum is 56.

The spelling of 1172697640706 in words is "one trillion, one hundred seventy-two billion, six hundred ninety-seven million, six hundred forty thousand, seven hundred six".