63614328521 has 2 divisors, whose sum is σ = 63614328522. Its totient is φ = 63614328520.

The previous prime is 63614328517. The next prime is 63614328539. The reversal of 63614328521 is 12582341636.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33525610000 + 30088718521 = 183100^2 + 173461^2 .

It is a cyclic number.

It is not a de Polignac number, because 63614328521 - 2² = 63614328517 is a prime.

It is not a weakly prime, because it can be changed into another prime (63614328511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31807164260 + 31807164261.

It is an arithmetic number, because the mean of its divisors is an integer number (31807164261).

Almost surely, 2^63614328521 is an apocalyptic number.

It is an amenable number.

63614328521 is a deficient number, since it is larger than the sum of its proper divisors (1).

63614328521 is an equidigital number, since it uses as much as digits as its factorization.

63614328521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 41.

The spelling of 63614328521 in words is "sixty-three billion, six hundred fourteen million, three hundred twenty-eight thousand, five hundred twenty-one".