218090982057 has 16 divisors (see below), whose sum is σ = 318464018880. Its totient is φ = 131935090752.

The previous prime is 218090981993. The next prime is 218090982059. The reversal of 218090982057 is 750289090812.

218090982057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 218090982057 - 2⁶ = 218090981993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (218090982059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47388178 + ... + 47392779.

It is an arithmetic number, because the mean of its divisors is an integer number (19904001180).

Almost surely, 2^218090982057 is an apocalyptic number.

It is an amenable number.

218090982057 is a deficient number, since it is larger than the sum of its proper divisors (100373036823).

218090982057 is a wasteful number, since it uses less digits than its factorization.

218090982057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94781032.

The product of its (nonzero) digits is 725760, while the sum is 51.

The spelling of 218090982057 in words is "two hundred eighteen billion, ninety million, nine hundred eighty-two thousand, fifty-seven".