130028318644 has 48 divisors (see below), whose sum is σ = 265825436800. Its totient is φ = 55629504000.

The previous prime is 130028318639. The next prime is 130028318669. The reversal of 130028318644 is 446813820031.

It is a junction number, because it is equal to n+sod(n) for n = 130028318597 and 130028318606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 709519 + ... + 873769.

Almost surely, 2^130028318644 is an apocalyptic number.

130028318644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130028318644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132912718400).

130028318644 is an abundant number, since it is smaller than the sum of its proper divisors (135797118156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130028318644 is a wasteful number, since it uses less digits than its factorization.

130028318644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164853 (or 164837 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 130028318644 in words is "one hundred thirty billion, twenty-eight million, three hundred eighteen thousand, six hundred forty-four".