18571193348452 has 48 divisors (see below), whose sum is σ = 32863936089600. Its totient is φ = 9181855388160.

The previous prime is 18571193348419. The next prime is 18571193348453. The reversal of 18571193348452 is 25484339117581.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18571193348453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615720252 + ... + 615750412.

It is an arithmetic number, because the mean of its divisors is an integer number (684665335200).

Almost surely, 2^{18571193348452} is an apocalyptic number.

It is an amenable number.

18571193348452 is a deficient number, since it is larger than the sum of its proper divisors (14292742741148).

18571193348452 is a wasteful number, since it uses less digits than its factorization.

18571193348452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33076 (or 33074 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 61.

The spelling of 18571193348452 in words is "eighteen trillion, five hundred seventy-one billion, one hundred ninety-three million, three hundred forty-eight thousand, four hundred fifty-two".