63506034961 has 2 divisors, whose sum is σ = 63506034962. Its totient is φ = 63506034960.

The previous prime is 63506034793. The next prime is 63506034971. The reversal of 63506034961 is 16943060536.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62540006400 + 966028561 = 250080^2 + 31081^2 .

It is a cyclic number.

It is not a de Polignac number, because 63506034961 - 2¹³ = 63506026769 is a prime.

It is not a weakly prime, because it can be changed into another prime (63506034971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31753017480 + 31753017481.

It is an arithmetic number, because the mean of its divisors is an integer number (31753017481).

Almost surely, 2^63506034961 is an apocalyptic number.

It is an amenable number.

63506034961 is a deficient number, since it is larger than the sum of its proper divisors (1).

63506034961 is an equidigital number, since it uses as much as digits as its factorization.

63506034961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 43.

The spelling of 63506034961 in words is "sixty-three billion, five hundred six million, thirty-four thousand, nine hundred sixty-one".