18416850068 has 6 divisors (see below), whose sum is σ = 32229487626. Its totient is φ = 9208425032.

The previous prime is 18416850029. The next prime is 18416850079. The reversal of 18416850068 is 86005861481.

It can be written as a sum of positive squares in only one way, i.e., 18120390544 + 296459524 = 134612^2 + 17218^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2302106255 + ... + 2302106262.

It is an arithmetic number, because the mean of its divisors is an integer number (5371581271).

Almost surely, 2^18416850068 is an apocalyptic number.

It is an amenable number.

18416850068 is a deficient number, since it is larger than the sum of its proper divisors (13812637558).

18416850068 is a wasteful number, since it uses less digits than its factorization.

18416850068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4604212521 (or 4604212519 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 47.

The spelling of 18416850068 in words is "eighteen billion, four hundred sixteen million, eight hundred fifty thousand, sixty-eight".