18061187351 has 2 divisors, whose sum is σ = 18061187352. Its totient is φ = 18061187350.

The previous prime is 18061187341. The next prime is 18061187377. The reversal of 18061187351 is 15378116081.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18061187351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18061187299 and 18061187308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18061187341) 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, 9030593675 + 9030593676.

It is an arithmetic number, because the mean of its divisors is an integer number (9030593676).

Almost surely, 2^18061187351 is an apocalyptic number.

18061187351 is a deficient number, since it is larger than the sum of its proper divisors (1).

18061187351 is an equidigital number, since it uses as much as digits as its factorization.

18061187351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 41.

The spelling of 18061187351 in words is "eighteen billion, sixty-one million, one hundred eighty-seven thousand, three hundred fifty-one".