1177398045493 has 2 divisors, whose sum is σ = 1177398045494. Its totient is φ = 1177398045492.

The previous prime is 1177398045463. The next prime is 1177398045511. The reversal of 1177398045493 is 3945408937711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 804783027409 + 372615018084 = 897097^2 + 610422^2 .

It is a cyclic number.

It is not a de Polignac number, because 1177398045493 - 2²¹ = 1177395948341 is a prime.

It is a super-2 number, since 2×1177398045493² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1177398045443) by changing a digit.

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, 588699022746 + 588699022747.

It is an arithmetic number, because the mean of its divisors is an integer number (588699022747).

Almost surely, 2^{1177398045493} is an apocalyptic number.

It is an amenable number.

1177398045493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1177398045493 is an equidigital number, since it uses as much as digits as its factorization.

1177398045493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22861440, while the sum is 61.

The spelling of 1177398045493 in words is "one trillion, one hundred seventy-seven billion, three hundred ninety-eight million, forty-five thousand, four hundred ninety-three".