18714287429 has 4 divisors (see below), whose sum is σ = 19815127884. Its totient is φ = 17613446976.

The previous prime is 18714287413. The next prime is 18714287509. The reversal of 18714287429 is 92478241781.

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 15134658529 + 3579628900 = 123023^2 + 59830^2 .

It is a cyclic number.

It is not a de Polignac number, because 18714287429 - 2⁴ = 18714287413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18714287029) 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, 550420202 + ... + 550420235.

It is an arithmetic number, because the mean of its divisors is an integer number (4953781971).

Almost surely, 2^18714287429 is an apocalyptic number.

It is an amenable number.

18714287429 is a deficient number, since it is larger than the sum of its proper divisors (1100840455).

18714287429 is a wasteful number, since it uses less digits than its factorization.

18714287429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100840454.

The product of its digits is 1806336, while the sum is 53.

The spelling of 18714287429 in words is "eighteen billion, seven hundred fourteen million, two hundred eighty-seven thousand, four hundred twenty-nine".