187410361381 has 2 divisors, whose sum is σ = 187410361382. Its totient is φ = 187410361380.

The previous prime is 187410361373. The next prime is 187410361393. The reversal of 187410361381 is 183163014781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186222456225 + 1187905156 = 431535^2 + 34466^2 .

It is a cyclic number.

It is not a de Polignac number, because 187410361381 - 2³ = 187410361373 is a prime.

It is a super-2 number, since 2×187410361381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (187410367381) 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, 93705180690 + 93705180691.

It is an arithmetic number, because the mean of its divisors is an integer number (93705180691).

Almost surely, 2^187410361381 is an apocalyptic number.

It is an amenable number.

187410361381 is a deficient number, since it is larger than the sum of its proper divisors (1).

187410361381 is an equidigital number, since it uses as much as digits as its factorization.

187410361381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 187410361381 in words is "one hundred eighty-seven billion, four hundred ten million, three hundred sixty-one thousand, three hundred eighty-one".