20059850417 has 6 divisors (see below), whose sum is σ = 21240459954. Its totient is φ = 18879309600.

The previous prime is 20059850309. The next prime is 20059850429. The reversal of 20059850417 is 71405895002.

It can be written as a sum of positive squares in only one way, i.e., 18879859216 + 1179991201 = 137404^2 + 34351^2 .

It is not a de Polignac number, because 20059850417 - 2¹² = 20059846321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20059850467) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 566792 + ... + 601142.

It is an arithmetic number, because the mean of its divisors is an integer number (3540076659).

Almost surely, 2^20059850417 is an apocalyptic number.

It is an amenable number.

20059850417 is a deficient number, since it is larger than the sum of its proper divisors (1180609537).

20059850417 is an frugal number, since it uses more digits than its factorization.

20059850417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68719 (or 34368 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 20059850417 in words is "twenty billion, fifty-nine million, eight hundred fifty thousand, four hundred seventeen".