18885772342 has 32 divisors (see below), whose sum is σ = 30071433600. Its totient is φ = 8870611968.

The previous prime is 18885772337. The next prime is 18885772343. The reversal of 18885772342 is 24327758881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18885772343) 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, 2889334 + ... + 2895862.

It is an arithmetic number, because the mean of its divisors is an integer number (939732300).

Almost surely, 2^18885772342 is an apocalyptic number.

18885772342 is a deficient number, since it is larger than the sum of its proper divisors (11185661258).

18885772342 is a wasteful number, since it uses less digits than its factorization.

18885772342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7180.

The product of its digits is 6021120, while the sum is 55.

The spelling of 18885772342 in words is "eighteen billion, eight hundred eighty-five million, seven hundred seventy-two thousand, three hundred forty-two".