187364316709 has 2 divisors, whose sum is σ = 187364316710. Its totient is φ = 187364316708.

The previous prime is 187364316707. The next prime is 187364316739. The reversal of 187364316709 is 907613463781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173576390625 + 13787926084 = 416625^2 + 117422^2 .

It is a cyclic number.

It is not a de Polignac number, because 187364316709 - 2¹ = 187364316707 is a prime.

Together with 187364316707, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 187364316709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (187364316707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93682158354 + 93682158355.

It is an arithmetic number, because the mean of its divisors is an integer number (93682158355).

Almost surely, 2^187364316709 is an apocalyptic number.

It is an amenable number.

187364316709 is a deficient number, since it is larger than the sum of its proper divisors (1).

187364316709 is an equidigital number, since it uses as much as digits as its factorization.

187364316709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 187364316709 in words is "one hundred eighty-seven billion, three hundred sixty-four million, three hundred sixteen thousand, seven hundred nine".