130728389064 has 128 divisors (see below), whose sum is σ = 402483943680. Its totient is φ = 34457011200.

The previous prime is 130728389053. The next prime is 130728389093. The reversal of 130728389064 is 460983827031.

It is a junction number, because it is equal to n+sod(n) for n = 130728388998 and 130728389016.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3785154 + ... + 3819534.

It is an arithmetic number, because the mean of its divisors is an integer number (3144405810).

Almost surely, 2^130728389064 is an apocalyptic number.

130728389064 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 130728389064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201241971840).

130728389064 is an abundant number, since it is smaller than the sum of its proper divisors (271755554616).

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

130728389064 is a wasteful number, since it uses less digits than its factorization.

130728389064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36151 (or 36147 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 130728389064 in words is "one hundred thirty billion, seven hundred twenty-eight million, three hundred eighty-nine thousand, sixty-four".