12886391398 has 8 divisors (see below), whose sum is σ = 19646465760. Its totient is φ = 6337569480.

The previous prime is 12886391369. The next prime is 12886391407. The reversal of 12886391398 is 89319368821.

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

It is a congruent 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, 52812958 + ... + 52813201.

It is an arithmetic number, because the mean of its divisors is an integer number (2455808220).

Almost surely, 2^12886391398 is an apocalyptic number.

12886391398 is a deficient number, since it is larger than the sum of its proper divisors (6760074362).

12886391398 is a wasteful number, since it uses less digits than its factorization.

12886391398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105626222.

The product of its digits is 4478976, while the sum is 58.

The spelling of 12886391398 in words is "twelve billion, eight hundred eighty-six million, three hundred ninety-one thousand, three hundred ninety-eight".