2108312651 has 16 divisors (see below), whose sum is σ = 2212017696. Its totient is φ = 2007472896.

The previous prime is 2108312629. The next prime is 2108312653. The reversal of 2108312651 is 1562138012.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2108312651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2108312653) 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, 386495 + ... + 391911.

It is an arithmetic number, because the mean of its divisors is an integer number (138251106).

Almost surely, 2^2108312651 is an apocalyptic number.

2108312651 is a deficient number, since it is larger than the sum of its proper divisors (103705045).

2108312651 is a wasteful number, since it uses less digits than its factorization.

2108312651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5678.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 2108312651 is about 45916.3658296255. The cubic root of 2108312651 is about 1282.2666241513.

The spelling of 2108312651 in words is "two billion, one hundred eight million, three hundred twelve thousand, six hundred fifty-one".