12646270718 has 4 divisors (see below), whose sum is σ = 18969406080. Its totient is φ = 6323135358.

The previous prime is 12646270697. The next prime is 12646270723. The reversal of 12646270718 is 81707264621.

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

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, 3161567678 + ... + 3161567681.

It is an arithmetic number, because the mean of its divisors is an integer number (4742351520).

Almost surely, 2^12646270718 is an apocalyptic number.

12646270718 is a deficient number, since it is larger than the sum of its proper divisors (6323135362).

12646270718 is an equidigital number, since it uses as much as digits as its factorization.

12646270718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6323135361.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 12646270718 in words is "twelve billion, six hundred forty-six million, two hundred seventy thousand, seven hundred eighteen".