64675370677 has 8 divisors (see below), whose sum is σ = 64864140120. Its totient is φ = 64486717440.

The previous prime is 64675370671. The next prime is 64675370681. The reversal of 64675370677 is 77607357646.

It can be written as a sum of positive squares in 4 ways, for example, as 8309963281 + 56365407396 = 91159^2 + 237414^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64675370677 - 2¹¹ = 64675368629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64675370671) 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 in 7 ways as a sum of consecutive naturals, for example, 1155613 + ... + 1210285.

It is an arithmetic number, because the mean of its divisors is an integer number (8108017515).

Almost surely, 2^64675370677 is an apocalyptic number.

It is an amenable number.

64675370677 is a deficient number, since it is larger than the sum of its proper divisors (188769443).

64675370677 is a wasteful number, since it uses less digits than its factorization.

64675370677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58103.

The product of its (nonzero) digits is 31116960, while the sum is 58.

The spelling of 64675370677 in words is "sixty-four billion, six hundred seventy-five million, three hundred seventy thousand, six hundred seventy-seven".