18373745474 has 16 divisors (see below), whose sum is σ = 31504163328. Its totient is φ = 7872883872.

The previous prime is 18373745459. The next prime is 18373745519. The reversal of 18373745474 is 47454737381.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57779 + ... + 200214.

It is an arithmetic number, because the mean of its divisors is an integer number (1969010208).

Almost surely, 2^18373745474 is an apocalyptic number.

18373745474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18373745474 is a deficient number, since it is larger than the sum of its proper divisors (13130417854).

18373745474 is a wasteful number, since it uses less digits than its factorization.

18373745474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263089.

The product of its digits is 7902720, while the sum is 53.

The spelling of 18373745474 in words is "eighteen billion, three hundred seventy-three million, seven hundred forty-five thousand, four hundred seventy-four".