18735034568051 has 4 divisors (see below), whose sum is σ = 19241386853712. Its totient is φ = 18228682282392.

The previous prime is 18735034567967. The next prime is 18735034568053. The reversal of 18735034568051 is 15086543053781.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18735034568051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18735034568053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253176142775 + ... + 253176142848.

It is an arithmetic number, because the mean of its divisors is an integer number (4810346713428).

Almost surely, 2^{18735034568051} is an apocalyptic number.

18735034568051 is a deficient number, since it is larger than the sum of its proper divisors (506352285661).

18735034568051 is an equidigital number, since it uses as much as digits as its factorization.

18735034568051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506352285660.

The product of its (nonzero) digits is 12096000, while the sum is 56.

The spelling of 18735034568051 in words is "eighteen trillion, seven hundred thirty-five billion, thirty-four million, five hundred sixty-eight thousand, fifty-one".