12726317630 has 32 divisors (see below), whose sum is σ = 24681845664. Its totient is φ = 4696592256.

The previous prime is 12726317581. The next prime is 12726317663. The reversal of 12726317630 is 3671362721.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247292 + ... + 294288.

It is an arithmetic number, because the mean of its divisors is an integer number (771307677).

Almost surely, 2^12726317630 is an apocalyptic number.

12726317630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12726317630 is a deficient number, since it is larger than the sum of its proper divisors (11955528034).

12726317630 is a wasteful number, since it uses less digits than its factorization.

12726317630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49100.

The product of its (nonzero) digits is 63504, while the sum is 38.

The spelling of 12726317630 in words is "twelve billion, seven hundred twenty-six million, three hundred seventeen thousand, six hundred thirty".