18685018335002 has 16 divisors (see below), whose sum is σ = 28618849231272. Its totient is φ = 9147270240000.

The previous prime is 18685018334839. The next prime is 18685018335007. The reversal of 18685018335002 is 20053381058681.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11275620010561 + 7409398324441 = 3357919^2 + 2722021^2 .

It is not an unprimeable number, because it can be changed into a prime (18685018335007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467058749 + ... + 467098752.

Almost surely, 2^{18685018335002} is an apocalyptic number.

18685018335002 is a deficient number, since it is larger than the sum of its proper divisors (9933830896270).

18685018335002 is a wasteful number, since it uses less digits than its factorization.

18685018335002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934157713.

The product of its (nonzero) digits is 1382400, while the sum is 50.

The spelling of 18685018335002 in words is "eighteen trillion, six hundred eighty-five billion, eighteen million, three hundred thirty-five thousand, two".