12641813858 has 8 divisors (see below), whose sum is σ = 18963210240. Its totient is φ = 6320743780.

The previous prime is 12641813827. The next prime is 12641813869. The reversal of 12641813858 is 85831814621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76703 + ... + 176541.

It is an arithmetic number, because the mean of its divisors is an integer number (2370401280).

Almost surely, 2^12641813858 is an apocalyptic number.

12641813858 is a deficient number, since it is larger than the sum of its proper divisors (6321396382).

12641813858 is an equidigital number, since it uses as much as digits as its factorization.

12641813858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163152.

The product of its digits is 368640, while the sum is 47.

The spelling of 12641813858 in words is "twelve billion, six hundred forty-one million, eight hundred thirteen thousand, eight hundred fifty-eight".