12898905989 has 8 divisors (see below), whose sum is σ = 13088400000. Its totient is φ = 12710067552.

The previous prime is 12898905979. The next prime is 12898906019. The reversal of 12898905989 is 98950989821.

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

It is a cyclic number.

It is not a de Polignac number, because 12898905989 - 2⁴ = 12898905973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12898905919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124184 + ... + 203025.

It is an arithmetic number, because the mean of its divisors is an integer number (1636050000).

Almost surely, 2^12898905989 is an apocalyptic number.

It is an amenable number.

12898905989 is a deficient number, since it is larger than the sum of its proper divisors (189494011).

12898905989 is an equidigital number, since it uses as much as digits as its factorization.

12898905989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327787.

The product of its (nonzero) digits is 33592320, while the sum is 68.

The spelling of 12898905989 in words is "twelve billion, eight hundred ninety-eight million, nine hundred five thousand, nine hundred eighty-nine".