12418857878 has 16 divisors (see below), whose sum is σ = 21331308960. Its totient is φ = 5311908096.

The previous prime is 12418857853. The next prime is 12418857883. The reversal of 12418857878 is 87875881421.

It is a congruent 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, 864251 + ... + 878502.

It is an arithmetic number, because the mean of its divisors is an integer number (1333206810).

Almost surely, 2^12418857878 is an apocalyptic number.

12418857878 is a deficient number, since it is larger than the sum of its proper divisors (8912451082).

12418857878 is a wasteful number, since it uses less digits than its factorization.

12418857878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743271.

The product of its digits is 8028160, while the sum is 59.

The spelling of 12418857878 in words is "twelve billion, four hundred eighteen million, eight hundred fifty-seven thousand, eight hundred seventy-eight".