2797923171481 has 2 divisors, whose sum is σ = 2797923171482. Its totient is φ = 2797923171480.

The previous prime is 2797923171403. The next prime is 2797923171503. The reversal of 2797923171481 is 1841713297972.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2727105446025 + 70817725456 = 1651395^2 + 266116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2797923171481 is a prime.

It is a super-2 number, since 2×2797923171481² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2797923111481) by changing a digit.

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 as a sum of consecutive naturals, namely, 1398961585740 + 1398961585741.

It is an arithmetic number, because the mean of its divisors is an integer number (1398961585741).

Almost surely, 2^{2797923171481} is an apocalyptic number.

It is an amenable number.

2797923171481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2797923171481 is an equidigital number, since it uses as much as digits as its factorization.

2797923171481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10668672, while the sum is 61.

The spelling of 2797923171481 in words is "two trillion, seven hundred ninety-seven billion, nine hundred twenty-three million, one hundred seventy-one thousand, four hundred eighty-one".