64458394589 has 2 divisors, whose sum is σ = 64458394590. Its totient is φ = 64458394588.

The previous prime is 64458394549. The next prime is 64458394613. The reversal of 64458394589 is 98549385446.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46329118564 + 18129276025 = 215242^2 + 134645^2 .

It is a cyclic number.

It is not a de Polignac number, because 64458394589 - 2³² = 60163427293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64458394549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32229197294 + 32229197295.

It is an arithmetic number, because the mean of its divisors is an integer number (32229197295).

Almost surely, 2^64458394589 is an apocalyptic number.

It is an amenable number.

64458394589 is a deficient number, since it is larger than the sum of its proper divisors (1).

64458394589 is an equidigital number, since it uses as much as digits as its factorization.

64458394589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 149299200, while the sum is 65.

The spelling of 64458394589 in words is "sixty-four billion, four hundred fifty-eight million, three hundred ninety-four thousand, five hundred eighty-nine".