1772196875705 has 4 divisors (see below), whose sum is σ = 2126636250852. Its totient is φ = 1417757500560.

The previous prime is 1772196875693. The next prime is 1772196875711. The reversal of 1772196875705 is 5075786912771.

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 838242789136 + 933954086569 = 915556^2 + 966413^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1772196875705 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177219687566 + ... + 177219687575.

It is an arithmetic number, because the mean of its divisors is an integer number (531659062713).

Almost surely, 2^{1772196875705} is an apocalyptic number.

It is an amenable number.

1772196875705 is a deficient number, since it is larger than the sum of its proper divisors (354439375147).

1772196875705 is an equidigital number, since it uses as much as digits as its factorization.

1772196875705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354439375146.

The product of its (nonzero) digits is 51861600, while the sum is 65.

The spelling of 1772196875705 in words is "one trillion, seven hundred seventy-two billion, one hundred ninety-six million, eight hundred seventy-five thousand, seven hundred five".