63425268377 has 2 divisors, whose sum is σ = 63425268378. Its totient is φ = 63425268376.

The previous prime is 63425268373. The next prime is 63425268457. The reversal of 63425268377 is 77386252436.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62906157721 + 519110656 = 250811^2 + 22784^2 .

It is a cyclic number.

It is not a de Polignac number, because 63425268377 - 2² = 63425268373 is a prime.

It is not a weakly prime, because it can be changed into another prime (63425268373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31712634188 + 31712634189.

It is an arithmetic number, because the mean of its divisors is an integer number (31712634189).

Almost surely, 2^63425268377 is an apocalyptic number.

It is an amenable number.

63425268377 is a deficient number, since it is larger than the sum of its proper divisors (1).

63425268377 is an equidigital number, since it uses as much as digits as its factorization.

63425268377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 53.

The spelling of 63425268377 in words is "sixty-three billion, four hundred twenty-five million, two hundred sixty-eight thousand, three hundred seventy-seven".