6918498999 has 12 divisors (see below), whose sum is σ = 10337987400. Its totient is φ = 4453286544.

The previous prime is 6918498949. The next prime is 6918499031. The reversal of 6918498999 is 9998948196.

It is not a de Polignac number, because 6918498999 - 2¹² = 6918494903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6918498919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13253569 + ... + 13254090.

It is an arithmetic number, because the mean of its divisors is an integer number (861498950).

Almost surely, 2^6918498999 is an apocalyptic number.

6918498999 is a deficient number, since it is larger than the sum of its proper divisors (3419488401).

6918498999 is a wasteful number, since it uses less digits than its factorization.

6918498999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26507694 (or 26507691 counting only the distinct ones).

The product of its digits is 90699264, while the sum is 72.

The square root of 6918498999 is about 83177.5149845197. The cubic root of 6918498999 is about 1905.4780960524.

The spelling of 6918498999 in words is "six billion, nine hundred eighteen million, four hundred ninety-eight thousand, nine hundred ninety-nine".