18468127877 has 4 divisors (see below), whose sum is σ = 18861066816. Its totient is φ = 18075188940.

The previous prime is 18468127859. The next prime is 18468127897. The reversal of 18468127877 is 77872186481.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18468127877 - 2⁸ = 18468127621 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 (18468127897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196469399 + ... + 196469492.

It is an arithmetic number, because the mean of its divisors is an integer number (4715266704).

Almost surely, 2^18468127877 is an apocalyptic number.

It is an amenable number.

18468127877 is a deficient number, since it is larger than the sum of its proper divisors (392938939).

18468127877 is an equidigital number, since it uses as much as digits as its factorization.

18468127877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392938938.

The product of its digits is 8429568, while the sum is 59.

The spelling of 18468127877 in words is "eighteen billion, four hundred sixty-eight million, one hundred twenty-seven thousand, eight hundred seventy-seven".