2688652690 has 16 divisors (see below), whose sum is σ = 4848432192. Its totient is φ = 1073492784.

The previous prime is 2688652667. The next prime is 2688652711. The reversal of 2688652690 is 962568862.

It is a super-2 number, since 2×2688652690² = 14457706574888472200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240294 + ... + 251233.

It is an arithmetic number, because the mean of its divisors is an integer number (303027012).

Almost surely, 2^2688652690 is an apocalyptic number.

2688652690 is a deficient number, since it is larger than the sum of its proper divisors (2159779502).

2688652690 is a wasteful number, since it uses less digits than its factorization.

2688652690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492081.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The square root of 2688652690 is about 51852.2197210496. The cubic root of 2688652690 is about 1390.5231869340.

The spelling of 2688652690 in words is "two billion, six hundred eighty-eight million, six hundred fifty-two thousand, six hundred ninety".