64590651529 has 2 divisors, whose sum is σ = 64590651530. Its totient is φ = 64590651528.

The previous prime is 64590651451. The next prime is 64590651583. The reversal of 64590651529 is 92515609546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41138791929 + 23451859600 = 202827^2 + 153140^2 .

It is a cyclic number.

It is not a de Polignac number, because 64590651529 - 2⁷ = 64590651401 is a prime.

It is not a weakly prime, because it can be changed into another prime (64590051529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32295325764 + 32295325765.

It is an arithmetic number, because the mean of its divisors is an integer number (32295325765).

Almost surely, 2^64590651529 is an apocalyptic number.

It is an amenable number.

64590651529 is a deficient number, since it is larger than the sum of its proper divisors (1).

64590651529 is an equidigital number, since it uses as much as digits as its factorization.

64590651529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916000, while the sum is 52.

The spelling of 64590651529 in words is "sixty-four billion, five hundred ninety million, six hundred fifty-one thousand, five hundred twenty-nine".