18061187341 has 2 divisors, whose sum is σ = 18061187342. Its totient is φ = 18061187340.

The previous prime is 18061187293. The next prime is 18061187351. The reversal of 18061187341 is 14378116081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12231254025 + 5829933316 = 110595^2 + 76354^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18061187341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18061187294 and 18061187303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18061187351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9030593670 + 9030593671.

It is an arithmetic number, because the mean of its divisors is an integer number (9030593671).

Almost surely, 2^18061187341 is an apocalyptic number.

It is an amenable number.

18061187341 is a deficient number, since it is larger than the sum of its proper divisors (1).

18061187341 is an equidigital number, since it uses as much as digits as its factorization.

18061187341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 40.

The spelling of 18061187341 in words is "eighteen billion, sixty-one million, one hundred eighty-seven thousand, three hundred forty-one".