425425425889 has 2 divisors, whose sum is σ = 425425425890. Its totient is φ = 425425425888.

The previous prime is 425425425863. The next prime is 425425425899. The reversal of 425425425889 is 988524524524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232621006864 + 192804419025 = 482308^2 + 439095^2 .

It is a cyclic number.

It is not a de Polignac number, because 425425425889 - 2⁵ = 425425425857 is a prime.

It is not a weakly prime, because it can be changed into another prime (425425425899) 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, 212712712944 + 212712712945.

It is an arithmetic number, because the mean of its divisors is an integer number (212712712945).

Almost surely, 2^425425425889 is an apocalyptic number.

It is an amenable number.

425425425889 is a deficient number, since it is larger than the sum of its proper divisors (1).

425425425889 is an equidigital number, since it uses as much as digits as its factorization.

425425425889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36864000, while the sum is 58.

The spelling of 425425425889 in words is "four hundred twenty-five billion, four hundred twenty-five million, four hundred twenty-five thousand, eight hundred eighty-nine".