63979724071 has 2 divisors, whose sum is σ = 63979724072. Its totient is φ = 63979724070.

The previous prime is 63979724063. The next prime is 63979724093. The reversal of 63979724071 is 17042797936.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63979724071 - 2³ = 63979724063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63979724021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31989862035 + 31989862036.

It is an arithmetic number, because the mean of its divisors is an integer number (31989862036).

Almost surely, 2^63979724071 is an apocalyptic number.

63979724071 is a deficient number, since it is larger than the sum of its proper divisors (1).

63979724071 is an equidigital number, since it uses as much as digits as its factorization.

63979724071 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 63979724071 in words is "sixty-three billion, nine hundred seventy-nine million, seven hundred twenty-four thousand, seventy-one".