18357155782 has 16 divisors (see below), whose sum is σ = 31482381600. Its totient is φ = 7864109568.

The previous prime is 18357155743. The next prime is 18357155833. The reversal of 18357155782 is 28755175381.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 234907 + ... + 303142.

It is an arithmetic number, because the mean of its divisors is an integer number (1967648850).

Almost surely, 2^18357155782 is an apocalyptic number.

18357155782 is a deficient number, since it is larger than the sum of its proper divisors (13125225818).

18357155782 is a wasteful number, since it uses less digits than its factorization.

18357155782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540495.

The product of its digits is 2352000, while the sum is 52.

The spelling of 18357155782 in words is "eighteen billion, three hundred fifty-seven million, one hundred fifty-five thousand, seven hundred eighty-two".