20424935019 has 16 divisors (see below), whose sum is σ = 28435449600. Its totient is φ = 13016278176.

The previous prime is 20424935009. The next prime is 20424935053. The reversal of 20424935019 is 91053942402.

It is not a de Polignac number, because 20424935019 - 2⁷ = 20424934891 is a prime.

It is a super-2 number, since 2×20424935019² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20424935009) 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, 15217 + ... + 202685.

It is an arithmetic number, because the mean of its divisors is an integer number (1777215600).

Almost surely, 2^20424935019 is an apocalyptic number.

20424935019 is a deficient number, since it is larger than the sum of its proper divisors (8010514581).

20424935019 is a wasteful number, since it uses less digits than its factorization.

20424935019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189074.

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 20424935019 in words is "twenty billion, four hundred twenty-four million, nine hundred thirty-five thousand, nineteen".