63037311973 has 2 divisors, whose sum is σ = 63037311974. Its totient is φ = 63037311972.

The previous prime is 63037311971. The next prime is 63037311979. The reversal of 63037311973 is 37911373036.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52012731969 + 11024580004 = 228063^2 + 104998^2 .

It is a cyclic number.

It is not a de Polignac number, because 63037311973 - 2¹ = 63037311971 is a prime.

Together with 63037311971, 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 (63037311971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31518655986 + 31518655987.

It is an arithmetic number, because the mean of its divisors is an integer number (31518655987).

Almost surely, 2^63037311973 is an apocalyptic number.

It is an amenable number.

63037311973 is a deficient number, since it is larger than the sum of its proper divisors (1).

63037311973 is an equidigital number, since it uses as much as digits as its factorization.

63037311973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 214326, while the sum is 43.

The spelling of 63037311973 in words is "sixty-three billion, thirty-seven million, three hundred eleven thousand, nine hundred seventy-three".