18690353348586 has 16 divisors (see below), whose sum is σ = 37391414475168. Its totient is φ = 6228333153200.

The previous prime is 18690353348543. The next prime is 18690353348593. The reversal of 18690353348586 is 68584335309681.

It is a self number, because there is not a number n which added to its sum of digits gives 18690353348586.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446134725 + ... + 446176616.

It is an arithmetic number, because the mean of its divisors is an integer number (2336963404698).

Almost surely, 2^{18690353348586} is an apocalyptic number.

18690353348586 is an abundant number, since it is smaller than the sum of its proper divisors (18701061126582).

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

18690353348586 is a wasteful number, since it uses less digits than its factorization.

18690353348586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892314837.

The product of its (nonzero) digits is 447897600, while the sum is 69.

The spelling of 18690353348586 in words is "eighteen trillion, six hundred ninety billion, three hundred fifty-three million, three hundred forty-eight thousand, five hundred eighty-six".