18255086677 has 8 divisors (see below), whose sum is σ = 18753282872. Its totient is φ = 17757144000.

The previous prime is 18255086651. The next prime is 18255086719. The reversal of 18255086677 is 77668055281.

It can be written as a sum of positive squares in 4 ways, for example, as 6817639761 + 11437446916 = 82569^2 + 106946^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 18255086677 - 2¹¹ = 18255084629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18255086617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87427 + ... + 210127.

It is an arithmetic number, because the mean of its divisors is an integer number (2344160359).

Almost surely, 2^18255086677 is an apocalyptic number.

It is an amenable number.

18255086677 is a deficient number, since it is larger than the sum of its proper divisors (498196195).

18255086677 is a wasteful number, since it uses less digits than its factorization.

18255086677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126759.

The product of its (nonzero) digits is 5644800, while the sum is 55.

The spelling of 18255086677 in words is "eighteen billion, two hundred fifty-five million, eighty-six thousand, six hundred seventy-seven".