627270656009 has 6 divisors (see below), whose sum is σ = 649646542350. Its totient is φ = 605640632576.

The previous prime is 627270656003. The next prime is 627270656053. The reversal of 627270656009 is 900656072726.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 259695217609 + 367575438400 = 509603^2 + 606280^2 .

It is not a de Polignac number, because 627270656009 - 2⁴ = 627270655993 is a prime.

It is a super-2 number, since 2×627270656009² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (627270656003) 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, 372930584 + ... + 372932265.

It is an arithmetic number, because the mean of its divisors is an integer number (108274423725).

Almost surely, 2^627270656009 is an apocalyptic number.

It is an amenable number.

627270656009 is a deficient number, since it is larger than the sum of its proper divisors (22375886341).

627270656009 is an equidigital number, since it uses as much as digits as its factorization.

627270656009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745862907 (or 745862878 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 627270656009 in words is "six hundred twenty-seven billion, two hundred seventy million, six hundred fifty-six thousand, nine".