17997386406 has 8 divisors (see below), whose sum is σ = 35994772824. Its totient is φ = 5999128800.

The previous prime is 17997386389. The next prime is 17997386419. The reversal of 17997386406 is 60468379971.

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

17997386406 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 17997386406.

It is a congruent number.

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, 1499782195 + ... + 1499782206.

It is an arithmetic number, because the mean of its divisors is an integer number (4499346603).

Almost surely, 2^17997386406 is an apocalyptic number.

17997386406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

17997386406 is a wasteful number, since it uses less digits than its factorization.

17997386406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999564406.

The product of its (nonzero) digits is 13716864, while the sum is 60.

The spelling of 17997386406 in words is "seventeen billion, nine hundred ninety-seven million, three hundred eighty-six thousand, four hundred six".