2173252341457 has 2 divisors, whose sum is σ = 2173252341458. Its totient is φ = 2173252341456.

The previous prime is 2173252341389. The next prime is 2173252341467. The reversal of 2173252341457 is 7541432523712.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2058926530816 + 114325810641 = 1434896^2 + 338121^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2173252341457 is a prime.

It is not a weakly prime, because it can be changed into another prime (2173252341467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086626170728 + 1086626170729.

It is an arithmetic number, because the mean of its divisors is an integer number (1086626170729).

Almost surely, 2^{2173252341457} is an apocalyptic number.

It is an amenable number.

2173252341457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2173252341457 is an equidigital number, since it uses as much as digits as its factorization.

2173252341457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1411200, while the sum is 46.

The spelling of 2173252341457 in words is "two trillion, one hundred seventy-three billion, two hundred fifty-two million, three hundred forty-one thousand, four hundred fifty-seven".