3128878831105 has 8 divisors (see below), whose sum is σ = 3818292811200. Its totient is φ = 2460677588976.

The previous prime is 3128878831049. The next prime is 3128878831109. The reversal of 3128878831105 is 5011388788213.

3128878831105 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 a cyclic number.

It is not a de Polignac number, because 3128878831105 - 2²³ = 3128870442497 is a prime.

It is a super-2 number, since 2×3128878831105² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3128878831109) 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, 5303184165 + ... + 5303184754.

It is an arithmetic number, because the mean of its divisors is an integer number (477286601400).

Almost surely, 2^{3128878831105} is an apocalyptic number.

It is an amenable number.

3128878831105 is a deficient number, since it is larger than the sum of its proper divisors (689413980095).

3128878831105 is a wasteful number, since it uses less digits than its factorization.

3128878831105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10606368983.

The product of its (nonzero) digits is 2580480, while the sum is 55.

The spelling of 3128878831105 in words is "three trillion, one hundred twenty-eight billion, eight hundred seventy-eight million, eight hundred thirty-one thousand, one hundred five".