18795252618 has 24 divisors (see below), whose sum is σ = 42866366400. Its totient is φ = 5935342824.

The previous prime is 18795252583. The next prime is 18795252709. The reversal of 18795252618 is 81625259781.

18795252618 is a `hidden beast` number, since 1 + 87 + 9 + 525 + 26 + 18 = 666.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 27478098 + ... + 27478781.

It is an arithmetic number, because the mean of its divisors is an integer number (1786098600).

Almost surely, 2^18795252618 is an apocalyptic number.

18795252618 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18795252618 is an abundant number, since it is smaller than the sum of its proper divisors (24071113782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18795252618 is a wasteful number, since it uses less digits than its factorization.

18795252618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54956906 (or 54956903 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 54.

The spelling of 18795252618 in words is "eighteen billion, seven hundred ninety-five million, two hundred fifty-two thousand, six hundred eighteen".