17983079889655 has 32 divisors (see below), whose sum is σ = 22115989057536. Its totient is φ = 14033008080000.

The previous prime is 17983079889601. The next prime is 17983079889701. The reversal of 17983079889655 is 55698897038971.

It is not a de Polignac number, because 17983079889655 - 2⁹ = 17983079889143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58620820 + ... + 58926790.

It is an arithmetic number, because the mean of its divisors is an integer number (691124658048).

Almost surely, 2^{17983079889655} is an apocalyptic number.

17983079889655 is a deficient number, since it is larger than the sum of its proper divisors (4132909167881).

17983079889655 is a wasteful number, since it uses less digits than its factorization.

17983079889655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307639.

The product of its (nonzero) digits is 8230118400, while the sum is 85.

The spelling of 17983079889655 in words is "seventeen trillion, nine hundred eighty-three billion, seventy-nine million, eight hundred eighty-nine thousand, six hundred fifty-five".