6464345775025 has 24 divisors (see below), whose sum is σ = 8684684974944. Its totient is φ = 4754079724800.

The previous prime is 6464345775007. The next prime is 6464345775101. The reversal of 6464345775025 is 5205775434646.

It is not a de Polignac number, because 6464345775025 - 2⁷ = 6464345774897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176844811 + ... + 176881360.

It is an arithmetic number, because the mean of its divisors is an integer number (361861873956).

Almost surely, 2^{6464345775025} is an apocalyptic number.

It is an amenable number.

6464345775025 is a deficient number, since it is larger than the sum of its proper divisors (2220339199919).

6464345775025 is a wasteful number, since it uses less digits than its factorization.

6464345775025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353726241 (or 353726236 counting only the distinct ones).

The product of its (nonzero) digits is 84672000, while the sum is 58.

The spelling of 6464345775025 in words is "six trillion, four hundred sixty-four billion, three hundred forty-five million, seven hundred seventy-five thousand, twenty-five".