18190483637 has 2 divisors, whose sum is σ = 18190483638. Its totient is φ = 18190483636.

The previous prime is 18190483627. The next prime is 18190483679. The reversal of 18190483637 is 73638409181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17328826321 + 861657316 = 131639^2 + 29354^2 .

It is a cyclic number.

It is not a de Polignac number, because 18190483637 - 2¹⁶ = 18190418101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18190483627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9095241818 + 9095241819.

It is an arithmetic number, because the mean of its divisors is an integer number (9095241819).

Almost surely, 2^18190483637 is an apocalyptic number.

It is an amenable number.

18190483637 is a deficient number, since it is larger than the sum of its proper divisors (1).

18190483637 is an equidigital number, since it uses as much as digits as its factorization.

18190483637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 18190483637 in words is "eighteen billion, one hundred ninety million, four hundred eighty-three thousand, six hundred thirty-seven".