20241724209 has 16 divisors (see below), whose sum is σ = 30883749888. Its totient is φ = 11551992912.

The previous prime is 20241724183. The next prime is 20241724277. The reversal of 20241724209 is 90242714202.

It is not a de Polignac number, because 20241724209 - 2¹⁶ = 20241658673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20241724209.

It is not an unprimeable number, because it can be changed into a prime (20241723209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 595857 + ... + 628910.

It is an arithmetic number, because the mean of its divisors is an integer number (1930234368).

Almost surely, 2^20241724209 is an apocalyptic number.

It is an amenable number.

20241724209 is a deficient number, since it is larger than the sum of its proper divisors (10642025679).

20241724209 is a wasteful number, since it uses less digits than its factorization.

20241724209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225564.

The product of its (nonzero) digits is 16128, while the sum is 33.

The spelling of 20241724209 in words is "twenty billion, two hundred forty-one million, seven hundred twenty-four thousand, two hundred nine".