12277808693280 has 144 divisors (see below), whose sum is σ = 45120947016600. Its totient is φ = 3022229827584.

The previous prime is 12277808693221. The next prime is 12277808693303. The reversal of 12277808693280 is 8239680877221.

12277808693280 is a `hidden beast` number, since 1 + 2 + 277 + 8 + 0 + 86 + 9 + 3 + 280 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6635796608016 + 5642012085264 = 2576004^2 + 2375292^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×12277808693280² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 327914205 + ... + 327951644.

Almost surely, 2^{12277808693280} is an apocalyptic number.

12277808693280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12277808693280 is an abundant number, since it is smaller than the sum of its proper divisors (32843138323320).

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

12277808693280 is a wasteful number, since it uses less digits than its factorization.

12277808693280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655865883 (or 655865872 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 63.

The spelling of 12277808693280 in words is "twelve trillion, two hundred seventy-seven billion, eight hundred eight million, six hundred ninety-three thousand, two hundred eighty".