64675929349 has 2 divisors, whose sum is σ = 64675929350. Its totient is φ = 64675929348.

The previous prime is 64675929299. The next prime is 64675929371. The reversal of 64675929349 is 94392957646.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56385826849 + 8290102500 = 237457^2 + 91050^2 .

It is a cyclic number.

It is not a de Polignac number, because 64675929349 - 2⁷ = 64675929221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64675929379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32337964674 + 32337964675.

It is an arithmetic number, because the mean of its divisors is an integer number (32337964675).

Almost surely, 2^64675929349 is an apocalyptic number.

It is an amenable number.

64675929349 is a deficient number, since it is larger than the sum of its proper divisors (1).

64675929349 is an equidigital number, since it uses as much as digits as its factorization.

64675929349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88179840, while the sum is 64.

The spelling of 64675929349 in words is "sixty-four billion, six hundred seventy-five million, nine hundred twenty-nine thousand, three hundred forty-nine".