20687482000 has 40 divisors (see below), whose sum is σ = 50022336312. Its totient is φ = 8274992000.

The previous prime is 20687481973. The next prime is 20687482001. The reversal of 20687482000 is 28478602.

It can be written as a sum of positive squares in 4 ways, for example, as 967458816 + 19720023184 = 31104^2 + 140428^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (20687482001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5169871 + ... + 5173870.

Almost surely, 2^20687482000 is an apocalyptic number.

20687482000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20687482000 is an abundant number, since it is smaller than the sum of its proper divisors (29334854312).

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

20687482000 is a wasteful number, since it uses less digits than its factorization.

20687482000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10343764 (or 10343748 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The spelling of 20687482000 in words is "twenty billion, six hundred eighty-seven million, four hundred eighty-two thousand".