56679512172329 has 2 divisors, whose sum is σ = 56679512172330. Its totient is φ = 56679512172328.

The previous prime is 56679512172223. The next prime is 56679512172337. The reversal of 56679512172329 is 92327121597665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34790214212329 + 21889297960000 = 5898323^2 + 4678600^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56679512172329 is a prime.

It is not a weakly prime, because it can be changed into another prime (56679512171329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28339756086164 + 28339756086165.

It is an arithmetic number, because the mean of its divisors is an integer number (28339756086165).

Almost surely, 2^{56679512172329} is an apocalyptic number.

It is an amenable number.

56679512172329 is a deficient number, since it is larger than the sum of its proper divisors (1).

56679512172329 is an equidigital number, since it uses as much as digits as its factorization.

56679512172329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 85730400, while the sum is 65.

The spelling of 56679512172329 in words is "fifty-six trillion, six hundred seventy-nine billion, five hundred twelve million, one hundred seventy-two thousand, three hundred twenty-nine".