18775116607 has 8 divisors (see below), whose sum is σ = 20521138736. Its totient is φ = 17072206272.

The previous prime is 18775116539. The next prime is 18775116611. The reversal of 18775116607 is 70661157781.

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 18775116607 - 2¹¹ = 18775114559 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 (18775116677) 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, 10777038 + ... + 10778779.

It is an arithmetic number, because the mean of its divisors is an integer number (2565142342).

Almost surely, 2^18775116607 is an apocalyptic number.

18775116607 is a deficient number, since it is larger than the sum of its proper divisors (1746022129).

18775116607 is a wasteful number, since it uses less digits than its factorization.

18775116607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21555897.

The product of its (nonzero) digits is 493920, while the sum is 49.

The spelling of 18775116607 in words is "eighteen billion, seven hundred seventy-five million, one hundred sixteen thousand, six hundred seven".