12636684308 has 6 divisors (see below), whose sum is σ = 22114197546. Its totient is φ = 6318342152.

The previous prime is 12636684253. The next prime is 12636684317. The reversal of 12636684308 is 80348663621.

It can be written as a sum of positive squares in only one way, i.e., 12580314244 + 56370064 = 112162^2 + 7508^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1579585535 + ... + 1579585542.

It is an arithmetic number, because the mean of its divisors is an integer number (3685699591).

Almost surely, 2^12636684308 is an apocalyptic number.

It is an amenable number.

12636684308 is a deficient number, since it is larger than the sum of its proper divisors (9477513238).

12636684308 is a wasteful number, since it uses less digits than its factorization.

12636684308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159171081 (or 3159171079 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 12636684308 in words is "twelve billion, six hundred thirty-six million, six hundred eighty-four thousand, three hundred eight".