6472685209 has 9 divisors (see below), whose sum is σ = 6630257109. Its totient is φ = 6318778620.

The previous prime is 6472685201. The next prime is 6472685237. The reversal of 6472685209 is 9025862746.

The square root of 6472685209 is 80453.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 6472685209 - 2³ = 6472685201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6472685201) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3458544 + ... + 3460414.

Almost surely, 2^6472685209 is an apocalyptic number.

6472685209 is the 80453-rd square number.

6472685209 is the 40227-th centered octagonal number.

It is an amenable number.

6472685209 is a deficient number, since it is larger than the sum of its proper divisors (157571900).

6472685209 is an frugal number, since it uses more digits than its factorization.

6472685209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3828 (or 1914 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The cubic root of 6472685209 is about 1863.6377346215.

Multiplying 6472685209 by its sum of digits (49), we get a square (317161575241 = 563171²).

The spelling of 6472685209 in words is "six billion, four hundred seventy-two million, six hundred eighty-five thousand, two hundred nine".