1792766011721 has 4 divisors (see below), whose sum is σ = 1797844669332. Its totient is φ = 1787687354112.

The previous prime is 1792766011711. The next prime is 1792766011753. The reversal of 1792766011721 is 1271106672971.

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 622301677321 + 1170464334400 = 788861^2 + 1081880^2 .

It is a cyclic number.

It is not a de Polignac number, because 1792766011721 - 2⁶ = 1792766011657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1792766011721.

It is not an unprimeable number, because it can be changed into a prime (1792766011711) 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, 2539328276 + ... + 2539328981.

It is an arithmetic number, because the mean of its divisors is an integer number (449461167333).

Almost surely, 2^{1792766011721} is an apocalyptic number.

It is an amenable number.

1792766011721 is a deficient number, since it is larger than the sum of its proper divisors (5078657611).

1792766011721 is an equidigital number, since it uses as much as digits as its factorization.

1792766011721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5078657610.

The product of its (nonzero) digits is 444528, while the sum is 50.

The spelling of 1792766011721 in words is "one trillion, seven hundred ninety-two billion, seven hundred sixty-six million, eleven thousand, seven hundred twenty-one".