3687018667 has 4 divisors (see below), whose sum is σ = 3903902136. Its totient is φ = 3470135200.

The previous prime is 3687018659. The next prime is 3687018677. The reversal of 3687018667 is 7668107863.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7668107863 = 13 ⋅589854451.

It is not a de Polignac number, because 3687018667 - 2³ = 3687018659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3687018677) 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, 108441709 + ... + 108441742.

It is an arithmetic number, because the mean of its divisors is an integer number (975975534).

Almost surely, 2^3687018667 is an apocalyptic number.

3687018667 is a deficient number, since it is larger than the sum of its proper divisors (216883469).

3687018667 is a wasteful number, since it uses less digits than its factorization.

3687018667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216883468.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The square root of 3687018667 is about 60720.8256449136. The cubic root of 3687018667 is about 1544.8694278414.

The spelling of 3687018667 in words is "three billion, six hundred eighty-seven million, eighteen thousand, six hundred sixty-seven".