11979804599 has 8 divisors (see below), whose sum is σ = 13692160800. Its totient is φ = 10267687296.

The previous prime is 11979804581. The next prime is 11979804659. The reversal of 11979804599 is 99540897911.

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 11979804599 - 2¹⁶ = 11979739063 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 (11979804539) 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, 65147 + ... + 167939.

It is an arithmetic number, because the mean of its divisors is an integer number (1711520100).

Almost surely, 2^11979804599 is an apocalyptic number.

11979804599 is a deficient number, since it is larger than the sum of its proper divisors (1712356201).

11979804599 is a wasteful number, since it uses less digits than its factorization.

11979804599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119449.

The product of its (nonzero) digits is 7348320, while the sum is 62.

The spelling of 11979804599 in words is "eleven billion, nine hundred seventy-nine million, eight hundred four thousand, five hundred ninety-nine".