2381532626173 has 2 divisors, whose sum is σ = 2381532626174. Its totient is φ = 2381532626172.

The previous prime is 2381532626171. The next prime is 2381532626191. The reversal of 2381532626173 is 3716262351832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1696407261444 + 685125364729 = 1302462^2 + 827723^2 .

It is a cyclic number.

It is not a de Polignac number, because 2381532626173 - 2¹ = 2381532626171 is a prime.

Together with 2381532626171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2381532626171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1190766313086 + 1190766313087.

It is an arithmetic number, because the mean of its divisors is an integer number (1190766313087).

Almost surely, 2^{2381532626173} is an apocalyptic number.

It is an amenable number.

2381532626173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2381532626173 is an equidigital number, since it uses as much as digits as its factorization.

2381532626173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 49.

The spelling of 2381532626173 in words is "two trillion, three hundred eighty-one billion, five hundred thirty-two million, six hundred twenty-six thousand, one hundred seventy-three".