11929949439019 has 8 divisors (see below), whose sum is σ = 12631747814928. Its totient is φ = 11228155134720.

The previous prime is 11929949439011. The next prime is 11929949439103. The reversal of 11929949439019 is 91093494992911.

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 11929949439019 - 2³ = 11929949439011 is a prime.

It is a super-2 number, since 2×11929949439019² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11929949439011) 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, 6676279 + ... + 8272399.

It is an arithmetic number, because the mean of its divisors is an integer number (1578968476866).

Almost surely, 2^{11929949439019} is an apocalyptic number.

11929949439019 is a deficient number, since it is larger than the sum of its proper divisors (701798375909).

11929949439019 is a wasteful number, since it uses less digits than its factorization.

11929949439019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035805.

The product of its (nonzero) digits is 51018336, while the sum is 70.

The spelling of 11929949439019 in words is "eleven trillion, nine hundred twenty-nine billion, nine hundred forty-nine million, four hundred thirty-nine thousand, nineteen".