18428147580 has 96 divisors (see below), whose sum is σ = 52666629120. Its totient is φ = 4813159680.

The previous prime is 18428147567. The next prime is 18428147581. The reversal of 18428147580 is 8574182481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18428147581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 864207 + ... + 885273.

It is an arithmetic number, because the mean of its divisors is an integer number (548610720).

Almost surely, 2^18428147580 is an apocalyptic number.

18428147580 is a gapful number since it is divisible by the number (10) 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 18428147580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26333314560).

18428147580 is an abundant number, since it is smaller than the sum of its proper divisors (34238481540).

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

18428147580 is a wasteful number, since it uses less digits than its factorization.

18428147580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21379 (or 21377 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 48.

The spelling of 18428147580 in words is "eighteen billion, four hundred twenty-eight million, one hundred forty-seven thousand, five hundred eighty".