1172713726049 has 2 divisors, whose sum is σ = 1172713726050. Its totient is φ = 1172713726048.

The previous prime is 1172713726027. The next prime is 1172713726097. The reversal of 1172713726049 is 9406273172711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 752394903649 + 420318822400 = 867407^2 + 648320^2 .

It is an emirp because it is prime and its reverse (9406273172711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1172713726049 - 2²⁴ = 1172696948833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1172713725988 and 1172713726006.

It is not a weakly prime, because it can be changed into another prime (1172713726099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586356863024 + 586356863025.

It is an arithmetic number, because the mean of its divisors is an integer number (586356863025).

Almost surely, 2^{1172713726049} is an apocalyptic number.

It is an amenable number.

1172713726049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1172713726049 is an equidigital number, since it uses as much as digits as its factorization.

1172713726049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 889056, while the sum is 50.

The spelling of 1172713726049 in words is "one trillion, one hundred seventy-two billion, seven hundred thirteen million, seven hundred twenty-six thousand, forty-nine".