63930763583977 has 2 divisors, whose sum is σ = 63930763583978. Its totient is φ = 63930763583976.

The previous prime is 63930763583969. The next prime is 63930763584011. The reversal of 63930763583977 is 77938536703936.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39899385027216 + 24031378556761 = 6316596^2 + 4902181^2 .

It is a cyclic number.

It is not a de Polignac number, because 63930763583977 - 2³ = 63930763583969 is a prime.

It is a super-2 number, since 2×63930763583977² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63930763583957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31965381791988 + 31965381791989.

It is an arithmetic number, because the mean of its divisors is an integer number (31965381791989).

Almost surely, 2^{63930763583977} is an apocalyptic number.

It is an amenable number.

63930763583977 is a deficient number, since it is larger than the sum of its proper divisors (1).

63930763583977 is an equidigital number, since it uses as much as digits as its factorization.

63930763583977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240609120, while the sum is 76.

The spelling of 63930763583977 in words is "sixty-three trillion, nine hundred thirty billion, seven hundred sixty-three million, five hundred eighty-three thousand, nine hundred seventy-seven".