12278365488 has 30 divisors (see below), whose sum is σ = 34362370484. Its totient is φ = 4092788448.

The previous prime is 12278365423. The next prime is 12278365523. The reversal of 12278365488 is 88456387221.

12278365488 is a `hidden beast` number, since 1 + 2 + 27 + 83 + 65 + 488 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42633070 + ... + 42633357.

Almost surely, 2^12278365488 is an apocalyptic number.

12278365488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12278365488 is an abundant number, since it is smaller than the sum of its proper divisors (22084004996).

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

12278365488 is a wasteful number, since it uses less digits than its factorization.

12278365488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85266441 (or 85266432 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The spelling of 12278365488 in words is "twelve billion, two hundred seventy-eight million, three hundred sixty-five thousand, four hundred eighty-eight".