5179337634221 has 2 divisors, whose sum is σ = 5179337634222. Its totient is φ = 5179337634220.

The previous prime is 5179337634209. The next prime is 5179337634241. The reversal of 5179337634221 is 1224367339715.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3828326605321 + 1351011028900 = 1956611^2 + 1162330^2 .

It is a cyclic number.

It is not a de Polignac number, because 5179337634221 - 2⁶ = 5179337634157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5179337634241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2589668817110 + 2589668817111.

It is an arithmetic number, because the mean of its divisors is an integer number (2589668817111).

Almost surely, 2^{5179337634221} is an apocalyptic number.

It is an amenable number.

5179337634221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5179337634221 is an equidigital number, since it uses as much as digits as its factorization.

5179337634221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5715360, while the sum is 53.

The spelling of 5179337634221 in words is "five trillion, one hundred seventy-nine billion, three hundred thirty-seven million, six hundred thirty-four thousand, two hundred twenty-one".