18361343469 has 32 divisors (see below), whose sum is σ = 28379296000. Its totient is φ = 10342328832.

The previous prime is 18361343467. The next prime is 18361343489. The reversal of 18361343469 is 96434316381.

It is not a de Polignac number, because 18361343469 - 2¹ = 18361343467 is a prime.

It is a super-2 number, since 2×18361343469² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18361343467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4212039 + ... + 4216395.

It is an arithmetic number, because the mean of its divisors is an integer number (886853000).

Almost surely, 2^18361343469 is an apocalyptic number.

It is an amenable number.

18361343469 is a deficient number, since it is larger than the sum of its proper divisors (10017952531).

18361343469 is a wasteful number, since it uses less digits than its factorization.

18361343469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7189.

The product of its digits is 1119744, while the sum is 48.

The spelling of 18361343469 in words is "eighteen billion, three hundred sixty-one million, three hundred forty-three thousand, four hundred sixty-nine".