63930763583957 has 2 divisors, whose sum is σ = 63930763583958. Its totient is φ = 63930763583956.

The previous prime is 63930763583887. The next prime is 63930763583969. The reversal of 63930763583957 is 75938536703936.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36763255219441 + 27167508364516 = 6063271^2 + 5212246^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63930763583957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63930763583977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31965381791978 + 31965381791979.

It is an arithmetic number, because the mean of its divisors is an integer number (31965381791979).

Almost surely, 2^{63930763583957} is an apocalyptic number.

It is an amenable number.

63930763583957 is a deficient number, since it is larger than the sum of its proper divisors (1).

63930763583957 is an equidigital number, since it uses as much as digits as its factorization.

63930763583957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2314720800, while the sum is 74.

The spelling of 63930763583957 in words is "sixty-three trillion, nine hundred thirty billion, seven hundred sixty-three million, five hundred eighty-three thousand, nine hundred fifty-seven".