180634427428667 has 2 divisors, whose sum is σ = 180634427428668. Its totient is φ = 180634427428666.

The previous prime is 180634427428639. The next prime is 180634427428739. The reversal of 180634427428667 is 766824724436081.

180634427428667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 180634427428667 - 2³⁶ = 180565707951931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 180634427428597 and 180634427428606.

It is not a weakly prime, because it can be changed into another prime (180634421428667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90317213714333 + 90317213714334.

It is an arithmetic number, because the mean of its divisors is an integer number (90317213714334).

Almost surely, 2^{180634427428667} is an apocalyptic number.

180634427428667 is a deficient number, since it is larger than the sum of its proper divisors (1).

180634427428667 is an equidigital number, since it uses as much as digits as its factorization.

180634427428667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 520224768, while the sum is 68.

The spelling of 180634427428667 in words is "one hundred eighty trillion, six hundred thirty-four billion, four hundred twenty-seven million, four hundred twenty-eight thousand, six hundred sixty-seven".