12597776418 has 8 divisors (see below), whose sum is σ = 25195552848. Its totient is φ = 4199258804.

The previous prime is 12597776383. The next prime is 12597776423. The reversal of 12597776418 is 81467779521.

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

12597776418 is an admirable number.

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, 1049814696 + ... + 1049814707.

It is an arithmetic number, because the mean of its divisors is an integer number (3149444106).

Almost surely, 2^12597776418 is an apocalyptic number.

12597776418 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12597776418 is a wasteful number, since it uses less digits than its factorization.

12597776418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099629408.

The product of its digits is 5927040, while the sum is 57.

The spelling of 12597776418 in words is "twelve billion, five hundred ninety-seven million, seven hundred seventy-six thousand, four hundred eighteen".