11771900620 has 12 divisors (see below), whose sum is σ = 24720991344. Its totient is φ = 4708760240.

The previous prime is 11771900593. The next prime is 11771900627. The reversal of 11771900620 is 2600917711.

It is not an unprimeable number, because it can be changed into a prime (11771900627) 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 3 ways as a sum of consecutive naturals, for example, 294297496 + ... + 294297535.

It is an arithmetic number, because the mean of its divisors is an integer number (2060082612).

Almost surely, 2^11771900620 is an apocalyptic number.

11771900620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11771900620 is an abundant number, since it is smaller than the sum of its proper divisors (12949090724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11771900620 is a wasteful number, since it uses less digits than its factorization.

11771900620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588595040 (or 588595038 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 34.

The spelling of 11771900620 in words is "eleven billion, seven hundred seventy-one million, nine hundred thousand, six hundred twenty".