10999981689 has 8 divisors (see below), whose sum is σ = 15139759872. Its totient is φ = 7096762320.

The previous prime is 10999981651. The next prime is 10999981691. The reversal of 10999981689 is 98618999901.

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

It is not a de Polignac number, because 10999981689 - 2¹⁶ = 10999916153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10999983689) 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 7 ways as a sum of consecutive naturals, for example, 59139594 + ... + 59139779.

It is an arithmetic number, because the mean of its divisors is an integer number (1892469984).

Almost surely, 2^10999981689 is an apocalyptic number.

It is an amenable number.

10999981689 is a deficient number, since it is larger than the sum of its proper divisors (4139778183).

10999981689 is a wasteful number, since it uses less digits than its factorization.

10999981689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118279407.

The product of its (nonzero) digits is 22674816, while the sum is 69.

The spelling of 10999981689 in words is "ten billion, nine hundred ninety-nine million, nine hundred eighty-one thousand, six hundred eighty-nine".