3128981294989 has 8 divisors (see below), whose sum is σ = 3471288956640. Its totient is φ = 2796316102800.

The previous prime is 3128981294899. The next prime is 3128981295001. The reversal of 3128981294989 is 9894921898213.

3128981294989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3128981294989 - 2¹⁵ = 3128981262221 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 (3128981234989) 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, 2410616682 + ... + 2410617979.

It is an arithmetic number, because the mean of its divisors is an integer number (433911119580).

Almost surely, 2^{3128981294989} is an apocalyptic number.

It is an amenable number.

3128981294989 is a deficient number, since it is larger than the sum of its proper divisors (342307661651).

3128981294989 is a wasteful number, since it uses less digits than its factorization.

3128981294989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4821234731.

The product of its digits is 161243136, while the sum is 73.

The spelling of 3128981294989 in words is "three trillion, one hundred twenty-eight billion, nine hundred eighty-one million, two hundred ninety-four thousand, nine hundred eighty-nine".