427223656373 has 2 divisors, whose sum is σ = 427223656374. Its totient is φ = 427223656372.

The previous prime is 427223656337. The next prime is 427223656393. The reversal of 427223656373 is 373656322724.

Together with previous prime (427223656337) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255978319249 + 171245337124 = 505943^2 + 413818^2 .

It is a cyclic number.

It is not a de Polignac number, because 427223656373 - 2¹⁰ = 427223655349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427223656333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213611828186 + 213611828187.

It is an arithmetic number, because the mean of its divisors is an integer number (213611828187).

Almost surely, 2^427223656373 is an apocalyptic number.

It is an amenable number.

427223656373 is a deficient number, since it is larger than the sum of its proper divisors (1).

427223656373 is an equidigital number, since it uses as much as digits as its factorization.

427223656373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7620480, while the sum is 50.

The spelling of 427223656373 in words is "four hundred twenty-seven billion, two hundred twenty-three million, six hundred fifty-six thousand, three hundred seventy-three".