11639109999 has 32 divisors (see below), whose sum is σ = 17211400704. Its totient is φ = 6937159680.

The previous prime is 11639109983. The next prime is 11639110037. The reversal of 11639109999 is 99990193611.

It is not a de Polignac number, because 11639109999 - 2⁴ = 11639109983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11639109299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 843534 + ... + 857220.

It is an arithmetic number, because the mean of its divisors is an integer number (537856272).

Almost surely, 2^11639109999 is an apocalyptic number.

11639109999 is a deficient number, since it is larger than the sum of its proper divisors (5572290705).

11639109999 is a wasteful number, since it uses less digits than its factorization.

11639109999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14127.

The product of its (nonzero) digits is 1062882, while the sum is 57.

The spelling of 11639109999 in words is "eleven billion, six hundred thirty-nine million, one hundred nine thousand, nine hundred ninety-nine".