63314177891 has 2 divisors, whose sum is σ = 63314177892. Its totient is φ = 63314177890.

The previous prime is 63314177887. The next prime is 63314177921. The reversal of 63314177891 is 19877141336.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63314177891 - 2² = 63314177887 is a prime.

It is not a weakly prime, because it can be changed into another prime (63314177821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31657088945 + 31657088946.

It is an arithmetic number, because the mean of its divisors is an integer number (31657088946).

Almost surely, 2^63314177891 is an apocalyptic number.

63314177891 is a deficient number, since it is larger than the sum of its proper divisors (1).

63314177891 is an equidigital number, since it uses as much as digits as its factorization.

63314177891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 50.

The spelling of 63314177891 in words is "sixty-three billion, three hundred fourteen million, one hundred seventy-seven thousand, eight hundred ninety-one".