12209757776 has 20 divisors (see below), whose sum is σ = 23826600000. Its totient is φ = 6060957792.

The previous prime is 12209757737. The next prime is 12209757803. The reversal of 12209757776 is 67775790221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2742776 + ... + 2747223.

It is an arithmetic number, because the mean of its divisors is an integer number (1191330000).

Almost surely, 2^12209757776 is an apocalyptic number.

12209757776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12209757776 is a deficient number, since it is larger than the sum of its proper divisors (11616842224).

12209757776 is a wasteful number, since it uses less digits than its factorization.

12209757776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5490146 (or 5490140 counting only the distinct ones).

The product of its (nonzero) digits is 2593080, while the sum is 53.

The spelling of 12209757776 in words is "twelve billion, two hundred nine million, seven hundred fifty-seven thousand, seven hundred seventy-six".