2626212809 has 16 divisors (see below), whose sum is σ = 2919188160. Its totient is φ = 2342472000.

The previous prime is 2626212791. The next prime is 2626212829. The reversal of 2626212809 is 9082126262.

It is a de Polignac number, because none of the positive numbers 2^k-2626212809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2626212829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276479 + ... + 285819.

It is an arithmetic number, because the mean of its divisors is an integer number (182449260).

Almost surely, 2^2626212809 is an apocalyptic number.

It is an amenable number.

2626212809 is a deficient number, since it is larger than the sum of its proper divisors (292975351).

2626212809 is a wasteful number, since it uses less digits than its factorization.

2626212809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9832.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 2626212809 is about 51246.5882669276. The cubic root of 2626212809 is about 1379.6745029770.

The spelling of 2626212809 in words is "two billion, six hundred twenty-six million, two hundred twelve thousand, eight hundred nine".