19860870960 has 480 divisors, whose sum is σ = 78787957248. Its totient is φ = 4389396480.

The previous prime is 19860870941. The next prime is 19860870961. The reversal of 19860870960 is 6907806891.

It is a junction number, because it is equal to n+sod(n) for n = 19860870897 and 19860870906.

It is not an unprimeable number, because it can be changed into a prime (19860870961) 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 95 ways as a sum of consecutive naturals, for example, 24488955 + ... + 24489765.

Almost surely, 2^19860870960 is an apocalyptic number.

19860870960 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 19860870960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39393978624).

19860870960 is an abundant number, since it is smaller than the sum of its proper divisors (58927086288).

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

19860870960 is a wasteful number, since it uses less digits than its factorization.

19860870960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The spelling of 19860870960 in words is "nineteen billion, eight hundred sixty million, eight hundred seventy thousand, nine hundred sixty".