2628246649 has 16 divisors (see below), whose sum is σ = 3163434880. Its totient is φ = 2133112320.

The previous prime is 2628246637. The next prime is 2628246653. The reversal of 2628246649 is 9466428262.

It is a cyclic number.

It is not a de Polignac number, because 2628246649 - 2¹⁵ = 2628213881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2628246149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341059 + ... + 348679.

It is an arithmetic number, because the mean of its divisors is an integer number (197714680).

Almost surely, 2^2628246649 is an apocalyptic number.

It is an amenable number.

2628246649 is a deficient number, since it is larger than the sum of its proper divisors (535188231).

2628246649 is a wasteful number, since it uses less digits than its factorization.

2628246649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10240.

The product of its digits is 1990656, while the sum is 49.

The square root of 2628246649 is about 51266.4280889551. The cubic root of 2628246649 is about 1380.0305687060.

The spelling of 2628246649 in words is "two billion, six hundred twenty-eight million, two hundred forty-six thousand, six hundred forty-nine".