2649108651 has 16 divisors (see below), whose sum is σ = 4212248064. Its totient is φ = 1447959744.

The previous prime is 2649108643. The next prime is 2649108661. The reversal of 2649108651 is 1568019462.

It is not a de Polignac number, because 2649108651 - 2³ = 2649108643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2649108661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2741866 + ... + 2742831.

It is an arithmetic number, because the mean of its divisors is an integer number (263265504).

Almost surely, 2^2649108651 is an apocalyptic number.

2649108651 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2649108651 is a deficient number, since it is larger than the sum of its proper divisors (1563139413).

2649108651 is a wasteful number, since it uses less digits than its factorization.

2649108651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5484730.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 2649108651 is about 51469.4924299822. The cubic root of 2649108651 is about 1383.6723323761.

The spelling of 2649108651 in words is "two billion, six hundred forty-nine million, one hundred eight thousand, six hundred fifty-one".