6118998117 has 8 divisors (see below), whose sum is σ = 8181391680. Its totient is φ = 4067968320.

The previous prime is 6118998107. The next prime is 6118998133. The reversal of 6118998117 is 7118998116.

It is a happy number.

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

It is not a de Polignac number, because 6118998117 - 2¹¹ = 6118996069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6118998117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6118998107) 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, 2839684 + ... + 2841837.

It is an arithmetic number, because the mean of its divisors is an integer number (1022673960).

Almost surely, 2^6118998117 is an apocalyptic number.

It is an amenable number.

6118998117 is a deficient number, since it is larger than the sum of its proper divisors (2062393563).

6118998117 is a wasteful number, since it uses less digits than its factorization.

6118998117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5681883.

The product of its digits is 217728, while the sum is 51.

The square root of 6118998117 is about 78224.0251904746. The cubic root of 6118998117 is about 1829.0550345382.

Subtracting 6118998117 from its reverse (7118998116), we obtain a palindrome (999999999).

The spelling of 6118998117 in words is "six billion, one hundred eighteen million, nine hundred ninety-eight thousand, one hundred seventeen".