20259871107 has 32 divisors (see below), whose sum is σ = 31470405120. Its totient is φ = 11352956160.

The previous prime is 20259871067. The next prime is 20259871111. The reversal of 20259871107 is 70117895202.

It is not a de Polignac number, because 20259871107 - 2¹⁹ = 20259346819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20259871117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3301432 + ... + 3307562.

It is an arithmetic number, because the mean of its divisors is an integer number (983450160).

Almost surely, 2^20259871107 is an apocalyptic number.

20259871107 is a deficient number, since it is larger than the sum of its proper divisors (11210534013).

20259871107 is a wasteful number, since it uses less digits than its factorization.

20259871107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9163.

The product of its (nonzero) digits is 70560, while the sum is 42.

The spelling of 20259871107 in words is "twenty billion, two hundred fifty-nine million, eight hundred seventy-one thousand, one hundred seven".