18037688107 has 8 divisors (see below), whose sum is σ = 18827665920. Its totient is φ = 17248187880.

The previous prime is 18037688101. The next prime is 18037688159. The reversal of 18037688107 is 70188673081.

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 18037688107 - 2⁷ = 18037687979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18037688101) 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, 41107 + ... + 194332.

It is an arithmetic number, because the mean of its divisors is an integer number (2353458240).

Almost surely, 2^18037688107 is an apocalyptic number.

18037688107 is a deficient number, since it is larger than the sum of its proper divisors (789977813).

18037688107 is a wasteful number, since it uses less digits than its factorization.

18037688107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238793.

The product of its (nonzero) digits is 451584, while the sum is 49.

The spelling of 18037688107 in words is "eighteen billion, thirty-seven million, six hundred eighty-eight thousand, one hundred seven".