423424627477 has 2 divisors, whose sum is σ = 423424627478. Its totient is φ = 423424627476.

The previous prime is 423424627447. The next prime is 423424627489. The reversal of 423424627477 is 774726424324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 327863888836 + 95560738641 = 572594^2 + 309129^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423424627477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423424627447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211712313738 + 211712313739.

It is an arithmetic number, because the mean of its divisors is an integer number (211712313739).

Almost surely, 2^423424627477 is an apocalyptic number.

It is an amenable number.

423424627477 is a deficient number, since it is larger than the sum of its proper divisors (1).

423424627477 is an equidigital number, since it uses as much as digits as its factorization.

423424627477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12644352, while the sum is 52.

The spelling of 423424627477 in words is "four hundred twenty-three billion, four hundred twenty-four million, six hundred twenty-seven thousand, four hundred seventy-seven".