12613617680 has 40 divisors (see below), whose sum is σ = 30601737792. Its totient is φ = 4826079104.

The previous prime is 12613617671. The next prime is 12613617701. The reversal of 12613617680 is 8671631621.

It is a tau number, because it is divible by the number of its divisors (40).

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, 3425774 + ... + 3429453.

Almost surely, 2^12613617680 is an apocalyptic number.

12613617680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12613617680 is an abundant number, since it is smaller than the sum of its proper divisors (17988120112).

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

12613617680 is a wasteful number, since it uses less digits than its factorization.

12613617680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6855263 (or 6855257 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 12613617680 in words is "twelve billion, six hundred thirteen million, six hundred seventeen thousand, six hundred eighty".