2175396294881 has 2 divisors, whose sum is σ = 2175396294882. Its totient is φ = 2175396294880.

The previous prime is 2175396294839. The next prime is 2175396294901. The reversal of 2175396294881 is 1884926935712.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1664577334225 + 510818960656 = 1290185^2 + 714716^2 .

It is a cyclic number.

It is not a de Polignac number, because 2175396294881 - 2¹⁸ = 2175396032737 is a prime.

It is a super-2 number, since 2×2175396294881² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2175396294821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1087698147440 + 1087698147441.

It is an arithmetic number, because the mean of its divisors is an integer number (1087698147441).

Almost surely, 2^{2175396294881} is an apocalyptic number.

It is an amenable number.

2175396294881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2175396294881 is an equidigital number, since it uses as much as digits as its factorization.

2175396294881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52254720, while the sum is 65.

The spelling of 2175396294881 in words is "two trillion, one hundred seventy-five billion, three hundred ninety-six million, two hundred ninety-four thousand, eight hundred eighty-one".