2626340009 has 2 divisors, whose sum is σ = 2626340010. Its totient is φ = 2626340008.

The previous prime is 2626339951. The next prime is 2626340023. The reversal of 2626340009 is 9000436262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2453022784 + 173317225 = 49528^2 + 13165^2 .

It is a cyclic number.

It is not a de Polignac number, because 2626340009 - 2¹² = 2626335913 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2626340039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1313170004 + 1313170005.

It is an arithmetic number, because the mean of its divisors is an integer number (1313170005).

Almost surely, 2^2626340009 is an apocalyptic number.

It is an amenable number.

2626340009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2626340009 is an equidigital number, since it uses as much as digits as its factorization.

2626340009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 2626340009 is about 51247.8293101279. The cubic root of 2626340009 is about 1379.6967773542.

The spelling of 2626340009 in words is "two billion, six hundred twenty-six million, three hundred forty thousand, nine".