18135946753 has 4 divisors (see below), whose sum is σ = 18146120128. Its totient is φ = 18125773380.

The previous prime is 18135946739. The next prime is 18135946757. The reversal of 18135946753 is 35764953181.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18135946753 - 2¹⁷ = 18135815681 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18135946753.

It is not an unprimeable number, because it can be changed into a prime (18135946757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5084013 + ... + 5087578.

It is an arithmetic number, because the mean of its divisors is an integer number (4536530032).

Almost surely, 2^18135946753 is an apocalyptic number.

It is an amenable number.

18135946753 is a deficient number, since it is larger than the sum of its proper divisors (10173375).

18135946753 is a wasteful number, since it uses less digits than its factorization.

18135946753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10173374.

The product of its digits is 2721600, while the sum is 52.

The spelling of 18135946753 in words is "eighteen billion, one hundred thirty-five million, nine hundred forty-six thousand, seven hundred fifty-three".