18128302735 has 16 divisors (see below), whose sum is σ = 21959354880. Its totient is φ = 14366253600.

The previous prime is 18128302681. The next prime is 18128302739. The reversal of 18128302735 is 53720382181.

It is a happy number.

It is not a de Polignac number, because 18128302735 - 2¹³ = 18128294543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18128302739) 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, 237604 + ... + 304486.

It is an arithmetic number, because the mean of its divisors is an integer number (1372459680).

Almost surely, 2^18128302735 is an apocalyptic number.

18128302735 is a deficient number, since it is larger than the sum of its proper divisors (3831052145).

18128302735 is a wasteful number, since it uses less digits than its factorization.

18128302735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67398.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 18128302735 in words is "eighteen billion, one hundred twenty-eight million, three hundred two thousand, seven hundred thirty-five".