18134876213 has 2 divisors, whose sum is σ = 18134876214. Its totient is φ = 18134876212.

The previous prime is 18134876147. The next prime is 18134876273. The reversal of 18134876213 is 31267843181.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16860243409 + 1274632804 = 129847^2 + 35702^2 .

It is a cyclic number.

It is not a de Polignac number, because 18134876213 - 2³² = 13839908917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18134876273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9067438106 + 9067438107.

It is an arithmetic number, because the mean of its divisors is an integer number (9067438107).

Almost surely, 2^18134876213 is an apocalyptic number.

It is an amenable number.

18134876213 is a deficient number, since it is larger than the sum of its proper divisors (1).

18134876213 is an equidigital number, since it uses as much as digits as its factorization.

18134876213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 44.

The spelling of 18134876213 in words is "eighteen billion, one hundred thirty-four million, eight hundred seventy-six thousand, two hundred thirteen".