11779372905 has 16 divisors (see below), whose sum is σ = 19838944320. Its totient is φ = 5951683008.

The previous prime is 11779372883. The next prime is 11779372933. The reversal of 11779372905 is 50927397711.

It is not a de Polignac number, because 11779372905 - 2⁹ = 11779372393 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20665282 + ... + 20665851.

It is an arithmetic number, because the mean of its divisors is an integer number (1239934020).

Almost surely, 2^11779372905 is an apocalyptic number.

11779372905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11779372905 is a deficient number, since it is larger than the sum of its proper divisors (8059571415).

11779372905 is a wasteful number, since it uses less digits than its factorization.

11779372905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41331160.

The product of its (nonzero) digits is 833490, while the sum is 51.

The spelling of 11779372905 in words is "eleven billion, seven hundred seventy-nine million, three hundred seventy-two thousand, nine hundred five".