10991364539 has 8 divisors (see below), whose sum is σ = 11162749440. Its totient is φ = 10820195496.

The previous prime is 10991364533. The next prime is 10991364541. The reversal of 10991364539 is 93546319901.

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 10991364539 - 2⁴ = 10991364523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10991364533) 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, 50222 + ... + 156540.

It is an arithmetic number, because the mean of its divisors is an integer number (1395343680).

Almost surely, 2^10991364539 is an apocalyptic number.

10991364539 is a deficient number, since it is larger than the sum of its proper divisors (171384901).

10991364539 is a wasteful number, since it uses less digits than its factorization.

10991364539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107929.

The product of its (nonzero) digits is 787320, while the sum is 50.

The spelling of 10991364539 in words is "ten billion, nine hundred ninety-one million, three hundred sixty-four thousand, five hundred thirty-nine".