187316873369 has 2 divisors, whose sum is σ = 187316873370. Its totient is φ = 187316873368.

The previous prime is 187316873347. The next prime is 187316873423. The reversal of 187316873369 is 963378613781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186461603344 + 855270025 = 431812^2 + 29245^2 .

It is a cyclic number.

It is not a de Polignac number, because 187316873369 - 2¹⁶ = 187316807833 is a prime.

It is a super-2 number, since 2×187316873369² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (187316873329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93658436684 + 93658436685.

It is an arithmetic number, because the mean of its divisors is an integer number (93658436685).

Almost surely, 2^187316873369 is an apocalyptic number.

It is an amenable number.

187316873369 is a deficient number, since it is larger than the sum of its proper divisors (1).

187316873369 is an equidigital number, since it uses as much as digits as its factorization.

187316873369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27433728, while the sum is 62.

The spelling of 187316873369 in words is "one hundred eighty-seven billion, three hundred sixteen million, eight hundred seventy-three thousand, three hundred sixty-nine".