18742234955 has 8 divisors (see below), whose sum is σ = 22492173312. Its totient is φ = 14992793728.

The previous prime is 18742234939. The next prime is 18742234957. The reversal of 18742234955 is 55943224781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18742234955 - 2⁴ = 18742234939 is a prime.

It is a super-2 number, since 2×18742234955² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18742234957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35582 + ... + 196851.

It is an arithmetic number, because the mean of its divisors is an integer number (2811521664).

Almost surely, 2^18742234955 is an apocalyptic number.

18742234955 is a deficient number, since it is larger than the sum of its proper divisors (3749938357).

18742234955 is a wasteful number, since it uses less digits than its factorization.

18742234955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248565.

The product of its digits is 2419200, while the sum is 50.

The spelling of 18742234955 in words is "eighteen billion, seven hundred forty-two million, two hundred thirty-four thousand, nine hundred fifty-five".