13419128728 has 16 divisors (see below), whose sum is σ = 25249778280. Its totient is φ = 6685854528.

The previous prime is 13419128711. The next prime is 13419128729. The reversal of 13419128728 is 82782191431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13419128729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2961325 + ... + 2965852.

Almost surely, 2^13419128728 is an apocalyptic number.

It is an amenable number.

13419128728 is a deficient number, since it is larger than the sum of its proper divisors (11830649552).

13419128728 is a wasteful number, since it uses less digits than its factorization.

13419128728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5927466 (or 5927462 counting only the distinct ones).

The product of its digits is 193536, while the sum is 46.

The spelling of 13419128728 in words is "thirteen billion, four hundred nineteen million, one hundred twenty-eight thousand, seven hundred twenty-eight".