187018500001 has 2 divisors, whose sum is σ = 187018500002. Its totient is φ = 187018500000.

The previous prime is 187018499971. The next prime is 187018500041. The reversal of 187018500001 is 100005810781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135012153600 + 52006346401 = 367440^2 + 228049^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-187018500001 is a prime.

It is not a weakly prime, because it can be changed into another prime (187018500041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93509250000 + 93509250001.

It is an arithmetic number, because the mean of its divisors is an integer number (93509250001).

Almost surely, 2^187018500001 is an apocalyptic number.

It is an amenable number.

187018500001 is a deficient number, since it is larger than the sum of its proper divisors (1).

187018500001 is an equidigital number, since it uses as much as digits as its factorization.

187018500001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 31.

The spelling of 187018500001 in words is "one hundred eighty-seven billion, eighteen million, five hundred thousand, one".