12597819905 has 8 divisors (see below), whose sum is σ = 16491691584. Its totient is φ = 9162050800.

The previous prime is 12597819881. The next prime is 12597819911. The reversal of 12597819905 is 50991879521.

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

It is not a de Polignac number, because 12597819905 - 2²² = 12593625601 is a prime.

It is a Duffinian number.

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, 114525581 + ... + 114525690.

It is an arithmetic number, because the mean of its divisors is an integer number (2061461448).

Almost surely, 2^12597819905 is an apocalyptic number.

It is an amenable number.

12597819905 is a deficient number, since it is larger than the sum of its proper divisors (3893871679).

12597819905 is a wasteful number, since it uses less digits than its factorization.

12597819905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229051287.

The product of its (nonzero) digits is 2041200, while the sum is 56.

The spelling of 12597819905 in words is "twelve billion, five hundred ninety-seven million, eight hundred nineteen thousand, nine hundred five".