13399242768 has 30 divisors (see below), whose sum is σ = 37499270094. Its totient is φ = 4466414208.

The previous prime is 13399242739. The next prime is 13399242781. The reversal of 13399242768 is 86724299331.

13399242768 is a `hidden beast` number, since 1 + 3 + 399 + 242 + 7 + 6 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13301470224 + 97772544 = 115332^2 + 9888^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46525005 + ... + 46525292.

Almost surely, 2^13399242768 is an apocalyptic number.

13399242768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13399242768 is an abundant number, since it is smaller than the sum of its proper divisors (24100027326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13399242768 is a wasteful number, since it uses less digits than its factorization.

13399242768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93050311 (or 93050302 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 13399242768 in words is "thirteen billion, three hundred ninety-nine million, two hundred forty-two thousand, seven hundred sixty-eight".