18129653873 has 8 divisors (see below), whose sum is σ = 18473832000. Its totient is φ = 17785553968.

The previous prime is 18129653869. The next prime is 18129653887. The reversal of 18129653873 is 37835692181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18129653873 - 2² = 18129653869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18129653803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689828 + ... + 715626.

It is an arithmetic number, because the mean of its divisors is an integer number (2309229000).

Almost surely, 2^18129653873 is an apocalyptic number.

It is an amenable number.

18129653873 is a deficient number, since it is larger than the sum of its proper divisors (344178127).

18129653873 is a wasteful number, since it uses less digits than its factorization.

18129653873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39111.

The product of its digits is 2177280, while the sum is 53.

The spelling of 18129653873 in words is "eighteen billion, one hundred twenty-nine million, six hundred fifty-three thousand, eight hundred seventy-three".