3478438864567 has 2 divisors, whose sum is σ = 3478438864568. Its totient is φ = 3478438864566.

The previous prime is 3478438864531. The next prime is 3478438864573. The reversal of 3478438864567 is 7654688348743.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3478438864567 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3478438864567.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3478438864597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1739219432283 + 1739219432284.

It is an arithmetic number, because the mean of its divisors is an integer number (1739219432284).

Almost surely, 2^{3478438864567} is an apocalyptic number.

3478438864567 is a deficient number, since it is larger than the sum of its proper divisors (1).

3478438864567 is an equidigital number, since it uses as much as digits as its factorization.

3478438864567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2601123840, while the sum is 73.

The spelling of 3478438864567 in words is "three trillion, four hundred seventy-eight billion, four hundred thirty-eight million, eight hundred sixty-four thousand, five hundred sixty-seven".