12280354276 has 24 divisors (see below), whose sum is σ = 22029449400. Its totient is φ = 5986425600.

The previous prime is 12280354259. The next prime is 12280354283. The reversal of 12280354276 is 67245308221.

It can be written as a sum of positive squares in 4 ways, for example, as 534996900 + 11745357376 = 23130^2 + 108376^2 .

It is a super-2 number, since 2×12280354276² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229866 + ... + 278206.

It is an arithmetic number, because the mean of its divisors is an integer number (917893725).

Almost surely, 2^12280354276 is an apocalyptic number.

It is an amenable number.

12280354276 is a deficient number, since it is larger than the sum of its proper divisors (9749095124).

12280354276 is a wasteful number, since it uses less digits than its factorization.

12280354276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49935 (or 49933 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 12280354276 in words is "twelve billion, two hundred eighty million, three hundred fifty-four thousand, two hundred seventy-six".