18042300029 has 4 divisors (see below), whose sum is σ = 19430169276. Its totient is φ = 16654430784.

The previous prime is 18042300019. The next prime is 18042300037. The reversal of 18042300029 is 92000324081.

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

It can be written as a sum of positive squares in 2 ways, for example, as 716632900 + 17325667129 = 26770^2 + 131627^2 .

It is a cyclic number.

It is not a de Polignac number, because 18042300029 - 2⁴ = 18042300013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18042299974 and 18042300010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18042300019) 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, 693934604 + ... + 693934629.

It is an arithmetic number, because the mean of its divisors is an integer number (4857542319).

Almost surely, 2^18042300029 is an apocalyptic number.

It is an amenable number.

18042300029 is a deficient number, since it is larger than the sum of its proper divisors (1387869247).

18042300029 is a wasteful number, since it uses less digits than its factorization.

18042300029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387869246.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 18042300029 in words is "eighteen billion, forty-two million, three hundred thousand, twenty-nine".