18745731470 has 8 divisors (see below), whose sum is σ = 33742316664. Its totient is φ = 7498292584.

The previous prime is 18745731461. The next prime is 18745731553. The reversal of 18745731470 is 7413754781.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 937286564 + ... + 937286583.

It is an arithmetic number, because the mean of its divisors is an integer number (4217789583).

Almost surely, 2^18745731470 is an apocalyptic number.

18745731470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18745731470 is a deficient number, since it is larger than the sum of its proper divisors (14996585194).

18745731470 is a wasteful number, since it uses less digits than its factorization.

18745731470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874573154.

The product of its (nonzero) digits is 658560, while the sum is 47.

The spelling of 18745731470 in words is "eighteen billion, seven hundred forty-five million, seven hundred thirty-one thousand, four hundred seventy".