11009678959 has 4 divisors (see below), whose sum is σ = 11010310960. Its totient is φ = 11009046960.

The previous prime is 11009678957. The next prime is 11009678993. The reversal of 11009678959 is 95987690011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11009678959 - 2¹ = 11009678957 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 (11009678957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289107 + ... + 324964.

It is an arithmetic number, because the mean of its divisors is an integer number (2752577740).

Almost surely, 2^11009678959 is an apocalyptic number.

11009678959 is a deficient number, since it is larger than the sum of its proper divisors (632001).

11009678959 is an equidigital number, since it uses as much as digits as its factorization.

11009678959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632000.

The product of its (nonzero) digits is 1224720, while the sum is 55.

The spelling of 11009678959 in words is "eleven billion, nine million, six hundred seventy-eight thousand, nine hundred fifty-nine".