1018417661227 has 12 divisors (see below), whose sum is σ = 1074958057264. Its totient is φ = 964680924240.

The previous prime is 1018417661221. The next prime is 1018417661249. The reversal of 1018417661227 is 7221667148101.

It is a happy number.

It is not a de Polignac number, because 1018417661227 - 2¹⁹ = 1018417136939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1018417661221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9291024 + ... + 9399997.

Almost surely, 2^{1018417661227} is an apocalyptic number.

1018417661227 is a deficient number, since it is larger than the sum of its proper divisors (56540396037).

1018417661227 is a wasteful number, since it uses less digits than its factorization.

1018417661227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18691170 (or 18691147 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 46.

The spelling of 1018417661227 in words is "one trillion, eighteen billion, four hundred seventeen million, six hundred sixty-one thousand, two hundred twenty-seven".