425622136477 has 2 divisors, whose sum is σ = 425622136478. Its totient is φ = 425622136476.

The previous prime is 425622136421. The next prime is 425622136517. The reversal of 425622136477 is 774631226524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 397512596196 + 28109540281 = 630486^2 + 167659^2 .

It is a cyclic number.

It is not a de Polignac number, because 425622136477 - 2¹⁹ = 425621612189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 425622136477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425622139477) 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, 212811068238 + 212811068239.

It is an arithmetic number, because the mean of its divisors is an integer number (212811068239).

Almost surely, 2^425622136477 is an apocalyptic number.

It is an amenable number.

425622136477 is a deficient number, since it is larger than the sum of its proper divisors (1).

425622136477 is an equidigital number, since it uses as much as digits as its factorization.

425622136477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386880, while the sum is 49.

The spelling of 425622136477 in words is "four hundred twenty-five billion, six hundred twenty-two million, one hundred thirty-six thousand, four hundred seventy-seven".