63205713919 has 2 divisors, whose sum is σ = 63205713920. Its totient is φ = 63205713918.

The previous prime is 63205713917. The next prime is 63205714057. The reversal of 63205713919 is 91931750236.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63205713919 - 2¹ = 63205713917 is a prime.

It is a super-2 number, since 2×63205713919² (a number of 22 digits) contains 22 as substring.

Together with 63205713917, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63205713917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31602856959 + 31602856960.

It is an arithmetic number, because the mean of its divisors is an integer number (31602856960).

Almost surely, 2^63205713919 is an apocalyptic number.

63205713919 is a deficient number, since it is larger than the sum of its proper divisors (1).

63205713919 is an equidigital number, since it uses as much as digits as its factorization.

63205713919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 306180, while the sum is 46.

The spelling of 63205713919 in words is "sixty-three billion, two hundred five million, seven hundred thirteen thousand, nine hundred nineteen".