18685368370042 has 8 divisors (see below), whose sum is σ = 30576057332832. Its totient is φ = 8493349259100.

The previous prime is 18685368370037. The next prime is 18685368370063. The reversal of 18685368370042 is 24007386358681.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18685368370042² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424667462934 + ... + 424667462977.

It is an arithmetic number, because the mean of its divisors is an integer number (3822007166604).

Almost surely, 2^{18685368370042} is an apocalyptic number.

18685368370042 is a deficient number, since it is larger than the sum of its proper divisors (11890688962790).

18685368370042 is a wasteful number, since it uses less digits than its factorization.

18685368370042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849334925924.

The product of its (nonzero) digits is 46448640, while the sum is 61.

The spelling of 18685368370042 in words is "eighteen trillion, six hundred eighty-five billion, three hundred sixty-eight million, three hundred seventy thousand, forty-two".