94646664649 has 2 divisors, whose sum is σ = 94646664650. Its totient is φ = 94646664648.

The previous prime is 94646664617. The next prime is 94646664677.

94646664649 is nontrivially palindromic in base 10.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74728423225 + 19918241424 = 273365^2 + 141132^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 94646664649 - 2⁵ = 94646664617 is a prime.

It is a super-2 number, since 2×94646664649² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (94646664149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47323332324 + 47323332325.

It is an arithmetic number, because the mean of its divisors is an integer number (47323332325).

Almost surely, 2^94646664649 is an apocalyptic number.

It is an amenable number.

94646664649 is a deficient number, since it is larger than the sum of its proper divisors (1).

94646664649 is an equidigital number, since it uses as much as digits as its factorization.

94646664649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161243136, while the sum is 64.

The spelling of 94646664649 in words is "ninety-four billion, six hundred forty-six million, six hundred sixty-four thousand, six hundred forty-nine".