3421234643567 has 32 divisors (see below), whose sum is σ = 3987428315136. Its totient is φ = 2909455718400.

The previous prime is 3421234643537. The next prime is 3421234643587. The reversal of 3421234643567 is 7653464321243.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3421234643567 - 2²⁰ = 3421233594991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3421234643507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1081103 + ... + 2830415.

It is an arithmetic number, because the mean of its divisors is an integer number (124607134848).

Almost surely, 2^{3421234643567} is an apocalyptic number.

3421234643567 is a deficient number, since it is larger than the sum of its proper divisors (566193671569).

3421234643567 is a wasteful number, since it uses less digits than its factorization.

3421234643567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749591.

The product of its digits is 8709120, while the sum is 50.

The spelling of 3421234643567 in words is "three trillion, four hundred twenty-one billion, two hundred thirty-four million, six hundred forty-three thousand, five hundred sixty-seven".