18628766627 has 8 divisors (see below), whose sum is σ = 19273755600. Its totient is φ = 17983952224.

The previous prime is 18628766621. The next prime is 18628766647. The reversal of 18628766627 is 72666782681.

It is a happy number.

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 18628766627 - 2¹⁸ = 18628504483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18628766621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195824 + ... + 274962.

It is an arithmetic number, because the mean of its divisors is an integer number (2409219450).

Almost surely, 2^18628766627 is an apocalyptic number.

18628766627 is a deficient number, since it is larger than the sum of its proper divisors (644988973).

18628766627 is an equidigital number, since it uses as much as digits as its factorization.

18628766627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87285.

The product of its digits is 16257024, while the sum is 59.

The spelling of 18628766627 in words is "eighteen billion, six hundred twenty-eight million, seven hundred sixty-six thousand, six hundred twenty-seven".