18905304734 has 8 divisors (see below), whose sum is σ = 29124388488. Its totient is φ = 9197175240.

The previous prime is 18905304727. The next prime is 18905304749. The reversal of 18905304734 is 43740350981.

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, 127738472 + ... + 127738619.

It is an arithmetic number, because the mean of its divisors is an integer number (3640548561).

Almost surely, 2^18905304734 is an apocalyptic number.

18905304734 is a deficient number, since it is larger than the sum of its proper divisors (10219083754).

18905304734 is a wasteful number, since it uses less digits than its factorization.

18905304734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255477130.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 18905304734 in words is "eighteen billion, nine hundred five million, three hundred four thousand, seven hundred thirty-four".