497311271209 has 9 divisors (see below), whose sum is σ = 519890553399. Its totient is φ = 475673527560.

The previous prime is 497311271161. The next prime is 497311271221. The reversal of 497311271209 is 902172113794.

The square root of 497311271209 is 705203.

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

It can be written as a sum of positive squares in only one way, i.e., 494978381209 + 2332890000 = 703547^2 + 48300^2 .

It is not a de Polignac number, because 497311271209 - 2⁷ = 497311271081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (497311271269) 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, 16204339 + ... + 16234999.

Almost surely, 2^497311271209 is an apocalyptic number.

497311271209 is the 705203-rd square number.

497311271209 is the 352602-nd centered octagonal number.

It is an amenable number.

497311271209 is a deficient number, since it is larger than the sum of its proper divisors (22579282190).

497311271209 is an frugal number, since it uses more digits than its factorization.

497311271209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61368 (or 30684 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 46.

The spelling of 497311271209 in words is "four hundred ninety-seven billion, three hundred eleven million, two hundred seventy-one thousand, two hundred nine".