12981029398 has 8 divisors (see below), whose sum is σ = 19472029920. Its totient is φ = 6490352760.

The previous prime is 12981029381. The next prime is 12981029419. The reversal of 12981029398 is 89392018921.

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, 101203 + ... + 190273.

It is an arithmetic number, because the mean of its divisors is an integer number (2434003740).

Almost surely, 2^12981029398 is an apocalyptic number.

12981029398 is a deficient number, since it is larger than the sum of its proper divisors (6491000522).

12981029398 is an equidigital number, since it uses as much as digits as its factorization.

12981029398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161942.

The product of its (nonzero) digits is 559872, while the sum is 52.

The spelling of 12981029398 in words is "twelve billion, nine hundred eighty-one million, twenty-nine thousand, three hundred ninety-eight".