3688666810 has 16 divisors (see below), whose sum is σ = 6640473600. Its totient is φ = 1475272656.

The previous prime is 3688666771. The next prime is 3688666853. The reversal of 3688666810 is 186668863.

It is a super-2 number, since 2×3688666810² = 27212525670391152200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74851 + ... + 113929.

It is an arithmetic number, because the mean of its divisors is an integer number (415029600).

Almost surely, 2^3688666810 is an apocalyptic number.

3688666810 is a deficient number, since it is larger than the sum of its proper divisors (2951806790).

3688666810 is a wasteful number, since it uses less digits than its factorization.

3688666810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48525.

The product of its (nonzero) digits is 1990656, while the sum is 52.

The square root of 3688666810 is about 60734.3956090781. The cubic root of 3688666810 is about 1545.0995854718.

The spelling of 3688666810 in words is "three billion, six hundred eighty-eight million, six hundred sixty-six thousand, eight hundred ten".