268989689613 has 16 divisors (see below), whose sum is σ = 359252552000. Its totient is φ = 179026848000.

The previous prime is 268989689587. The next prime is 268989689627. The reversal of 268989689613 is 316986989862.

268989689613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 268989689613 - 2¹³ = 268989681421 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 (268989689693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5574213 + ... + 5622261.

It is an arithmetic number, because the mean of its divisors is an integer number (22453284500).

Almost surely, 2^268989689613 is an apocalyptic number.

It is an amenable number.

268989689613 is a deficient number, since it is larger than the sum of its proper divisors (90262862387).

268989689613 is a wasteful number, since it uses less digits than its factorization.

268989689613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51132.

The product of its digits is 483729408, while the sum is 75.

The spelling of 268989689613 in words is "two hundred sixty-eight billion, nine hundred eighty-nine million, six hundred eighty-nine thousand, six hundred thirteen".