11949799907 has 4 divisors (see below), whose sum is σ = 11950630080. Its totient is φ = 11948969736.

The previous prime is 11949799871. The next prime is 11949799933. The reversal of 11949799907 is 70999794911.

11949799907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70999794911 = 199 ⋅356782889.

It is a cyclic number.

It is not a de Polignac number, because 11949799907 - 2⁶ = 11949799843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11949799507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393107 + ... + 422412.

It is an arithmetic number, because the mean of its divisors is an integer number (2987657520).

Almost surely, 2^11949799907 is an apocalyptic number.

11949799907 is a deficient number, since it is larger than the sum of its proper divisors (830173).

11949799907 is an equidigital number, since it uses as much as digits as its factorization.

11949799907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830172.

The product of its (nonzero) digits is 11573604, while the sum is 65.

The spelling of 11949799907 in words is "eleven billion, nine hundred forty-nine million, seven hundred ninety-nine thousand, nine hundred seven".