12634609802 has 4 divisors (see below), whose sum is σ = 18951914706. Its totient is φ = 6317304900.

The previous prime is 12634609783. The next prime is 12634609843. The reversal of 12634609802 is 20890643621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11575823281 + 1058786521 = 107591^2 + 32539^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12634609802.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3158652449 + ... + 3158652452.

Almost surely, 2^12634609802 is an apocalyptic number.

12634609802 is a deficient number, since it is larger than the sum of its proper divisors (6317304904).

12634609802 is an equidigital number, since it uses as much as digits as its factorization.

12634609802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6317304903.

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 12634609802 in words is "twelve billion, six hundred thirty-four million, six hundred nine thousand, eight hundred two".