620126664413 has 2 divisors, whose sum is σ = 620126664414. Its totient is φ = 620126664412.

The previous prime is 620126664397. The next prime is 620126664431. The reversal of 620126664413 is 314466621026.

Together with next prime (620126664431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 614878676164 + 5247988249 = 784142^2 + 72443^2 .

It is a cyclic number.

It is not a de Polignac number, because 620126664413 - 2⁴ = 620126664397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620126666413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310063332206 + 310063332207.

It is an arithmetic number, because the mean of its divisors is an integer number (310063332207).

Almost surely, 2^620126664413 is an apocalyptic number.

It is an amenable number.

620126664413 is a deficient number, since it is larger than the sum of its proper divisors (1).

620126664413 is an equidigital number, since it uses as much as digits as its factorization.

620126664413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 620126664413 in words is "six hundred twenty billion, one hundred twenty-six million, six hundred sixty-four thousand, four hundred thirteen".