11773721770 has 16 divisors (see below), whose sum is σ = 21198464640. Its totient is φ = 4708207504.

The previous prime is 11773721767. The next prime is 11773721777. The reversal of 11773721770 is 7712737711.

It is not an unprimeable number, because it can be changed into a prime (11773721777) 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, 121102 + ... + 195481.

It is an arithmetic number, because the mean of its divisors is an integer number (1324904040).

Almost surely, 2^11773721770 is an apocalyptic number.

11773721770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11773721770 is a deficient number, since it is larger than the sum of its proper divisors (9424742870).

11773721770 is a wasteful number, since it uses less digits than its factorization.

11773721770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320309.

The product of its (nonzero) digits is 100842, while the sum is 43.

The spelling of 11773721770 in words is "eleven billion, seven hundred seventy-three million, seven hundred twenty-one thousand, seven hundred seventy".