3691423644667 has 12 divisors (see below), whose sum is σ = 4058168721208. Its totient is φ = 3355299208800.

The previous prime is 3691423644659. The next prime is 3691423644683. The reversal of 3691423644667 is 7664463241963.

It is not a de Polignac number, because 3691423644667 - 2³ = 3691423644659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3691423644647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1701309 + ... + 3205822.

Almost surely, 2^{3691423644667} is an apocalyptic number.

3691423644667 is a deficient number, since it is larger than the sum of its proper divisors (366745076541).

3691423644667 is a wasteful number, since it uses less digits than its factorization.

3691423644667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4913370 (or 4913359 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 61.

The spelling of 3691423644667 in words is "three trillion, six hundred ninety-one billion, four hundred twenty-three million, six hundred forty-four thousand, six hundred sixty-seven".