20209466473 has 16 divisors (see below), whose sum is σ = 23417303040. Its totient is φ = 17082844416.

The previous prime is 20209466461. The next prime is 20209466477. The reversal of 20209466473 is 37466490202.

It is a cyclic number.

It is not a de Polignac number, because 20209466473 - 2⁹ = 20209465961 is a prime.

It is a super-2 number, since 2×20209466473² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20209466477) 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, 196261 + ... + 280957.

It is an arithmetic number, because the mean of its divisors is an integer number (1463581440).

Almost surely, 2^20209466473 is an apocalyptic number.

It is an amenable number.

20209466473 is a deficient number, since it is larger than the sum of its proper divisors (3207836567).

20209466473 is an equidigital number, since it uses as much as digits as its factorization.

20209466473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85176.

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 20209466473 in words is "twenty billion, two hundred nine million, four hundred sixty-six thousand, four hundred seventy-three".