10989694385 has 8 divisors (see below), whose sum is σ = 13263863400. Its totient is φ = 8740935424.

The previous prime is 10989694381. The next prime is 10989694481. The reversal of 10989694385 is 58349698901.

10989694385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1955762176 + 9033932209 = 44224^2 + 95047^2 .

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 10989694385 - 2² = 10989694381 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (10989694381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6351560 + ... + 6353289.

It is an arithmetic number, because the mean of its divisors is an integer number (1657982925).

Almost surely, 2^10989694385 is an apocalyptic number.

It is an amenable number.

10989694385 is a deficient number, since it is larger than the sum of its proper divisors (2274169015).

10989694385 is a wasteful number, since it uses less digits than its factorization.

10989694385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12705027.

The product of its (nonzero) digits is 16796160, while the sum is 62.

The spelling of 10989694385 in words is "ten billion, nine hundred eighty-nine million, six hundred ninety-four thousand, three hundred eighty-five".