3688758161 has 4 divisors (see below), whose sum is σ = 4024099824. Its totient is φ = 3353416500.

The previous prime is 3688758119. The next prime is 3688758163. The reversal of 3688758161 is 1618578863.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3688758161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3688758163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167670815 + ... + 167670836.

It is an arithmetic number, because the mean of its divisors is an integer number (1006024956).

Almost surely, 2^3688758161 is an apocalyptic number.

It is an amenable number.

3688758161 is a deficient number, since it is larger than the sum of its proper divisors (335341663).

3688758161 is a wasteful number, since it uses less digits than its factorization.

3688758161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335341662.

The product of its digits is 1935360, while the sum is 53.

The square root of 3688758161 is about 60735.1476576784. The cubic root of 3688758161 is about 1545.1123403265.

The spelling of 3688758161 in words is "three billion, six hundred eighty-eight million, seven hundred fifty-eight thousand, one hundred sixty-one".