20419575239 has 16 divisors (see below), whose sum is σ = 23545724928. Its totient is φ = 17345990592.

The previous prime is 20419575227. The next prime is 20419575263. The reversal of 20419575239 is 93257591402.

It is not a de Polignac number, because 20419575239 - 2²⁰ = 20418526663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20419575193 and 20419575202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20419575739) 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 15 ways as a sum of consecutive naturals, for example, 847787 + ... + 871539.

It is an arithmetic number, because the mean of its divisors is an integer number (1471607808).

Almost surely, 2^20419575239 is an apocalyptic number.

20419575239 is a deficient number, since it is larger than the sum of its proper divisors (3126149689).

20419575239 is a wasteful number, since it uses less digits than its factorization.

20419575239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24854.

The product of its (nonzero) digits is 680400, while the sum is 47.

The spelling of 20419575239 in words is "twenty billion, four hundred nineteen million, five hundred seventy-five thousand, two hundred thirty-nine".