11950605578 has 8 divisors (see below), whose sum is σ = 17984299872. Its totient is φ = 5955838956.

The previous prime is 11950605577. The next prime is 11950605593. The reversal of 11950605578 is 87550605911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11950605577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9731150 + ... + 9732377.

It is an arithmetic number, because the mean of its divisors is an integer number (2248037484).

Almost surely, 2^11950605578 is an apocalyptic number.

11950605578 is a deficient number, since it is larger than the sum of its proper divisors (6033694294).

11950605578 is a wasteful number, since it uses less digits than its factorization.

11950605578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19463836.

The product of its (nonzero) digits is 378000, while the sum is 47.

The spelling of 11950605578 in words is "eleven billion, nine hundred fifty million, six hundred five thousand, five hundred seventy-eight".