128228360854 has 16 divisors (see below), whose sum is σ = 211041113040. Its totient is φ = 57948705760.

The previous prime is 128228360849. The next prime is 128228360857. The reversal of 128228360854 is 458063822821.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 128228360798 and 128228360807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128228360857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16841749 + ... + 16849360.

It is an arithmetic number, because the mean of its divisors is an integer number (13190069565).

Almost surely, 2^128228360854 is an apocalyptic number.

128228360854 is a deficient number, since it is larger than the sum of its proper divisors (82812752186).

128228360854 is a wasteful number, since it uses less digits than its factorization.

128228360854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33691295.

The product of its (nonzero) digits is 1474560, while the sum is 49.

The spelling of 128228360854 in words is "one hundred twenty-eight billion, two hundred twenty-eight million, three hundred sixty thousand, eight hundred fifty-four".