63974029771 has 2 divisors, whose sum is σ = 63974029772. Its totient is φ = 63974029770.

The previous prime is 63974029753. The next prime is 63974029787. The reversal of 63974029771 is 17792047936.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63974029771 - 2¹⁹ = 63973505483 is a prime.

It is not a weakly prime, because it can be changed into another prime (63974029741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31987014885 + 31987014886.

It is an arithmetic number, because the mean of its divisors is an integer number (31987014886).

Almost surely, 2^63974029771 is an apocalyptic number.

63974029771 is a deficient number, since it is larger than the sum of its proper divisors (1).

63974029771 is an equidigital number, since it uses as much as digits as its factorization.

63974029771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4000752, while the sum is 55.

The spelling of 63974029771 in words is "sixty-three billion, nine hundred seventy-four million, twenty-nine thousand, seven hundred seventy-one".