20376460217 has 6 divisors (see below), whose sum is σ = 20942060958. Its totient is φ = 19825743744.

The previous prime is 20376460213. The next prime is 20376460249. The reversal of 20376460217 is 71206467302.

It can be written as a sum of positive squares in 3 ways, for example, as 17939655721 + 2436804496 = 133939^2 + 49364^2 .

It is not a de Polignac number, because 20376460217 - 2² = 20376460213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20376460213) 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, 7440728 + ... + 7443465.

It is an arithmetic number, because the mean of its divisors is an integer number (3490343493).

Almost surely, 2^20376460217 is an apocalyptic number.

It is an amenable number.

20376460217 is a deficient number, since it is larger than the sum of its proper divisors (565600741).

20376460217 is an equidigital number, since it uses as much as digits as its factorization.

20376460217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14884267 (or 14884230 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 38.

The spelling of 20376460217 in words is "twenty billion, three hundred seventy-six million, four hundred sixty thousand, two hundred seventeen".