427673226377 has 2 divisors, whose sum is σ = 427673226378. Its totient is φ = 427673226376.

The previous prime is 427673226371. The next prime is 427673226397. The reversal of 427673226377 is 773622376724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400557346816 + 27115879561 = 632896^2 + 164669^2 .

It is a cyclic number.

It is not a de Polignac number, because 427673226377 - 2²² = 427669032073 is a prime.

It is a super-2 number, since 2×427673226377² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (427673226371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213836613188 + 213836613189.

It is an arithmetic number, because the mean of its divisors is an integer number (213836613189).

Almost surely, 2^427673226377 is an apocalyptic number.

It is an amenable number.

427673226377 is a deficient number, since it is larger than the sum of its proper divisors (1).

427673226377 is an equidigital number, since it uses as much as digits as its factorization.

427673226377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24893568, while the sum is 56.

The spelling of 427673226377 in words is "four hundred twenty-seven billion, six hundred seventy-three million, two hundred twenty-six thousand, three hundred seventy-seven".