18500008351842 has 48 divisors (see below), whose sum is σ = 40497377286912. Its totient is φ = 6102975663360.

The previous prime is 18500008351837. The next prime is 18500008351879. The reversal of 18500008351842 is 24815380000581.

18500008351842 is a `hidden beast` number, since 1 + 8 + 50 + 0 + 0 + 0 + 83 + 518 + 4 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154997367 + ... + 155116677.

It is an arithmetic number, because the mean of its divisors is an integer number (843695360144).

Almost surely, 2^{18500008351842} is an apocalyptic number.

18500008351842 is an abundant number, since it is smaller than the sum of its proper divisors (21997368935070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18500008351842 is a wasteful number, since it uses less digits than its factorization.

18500008351842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208223 (or 208220 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 45.

The spelling of 18500008351842 in words is "eighteen trillion, five hundred billion, eight million, three hundred fifty-one thousand, eight hundred forty-two".