64864527341263 has 16 divisors (see below), whose sum is σ = 73966002901056. Its totient is φ = 56350735234560.

The previous prime is 64864527341261. The next prime is 64864527341329. The reversal of 64864527341263 is 36214372546846.

It is not a de Polignac number, because 64864527341263 - 2¹ = 64864527341261 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 (64864527341261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181573 + ... + 11391313.

It is an arithmetic number, because the mean of its divisors is an integer number (4622875181316).

Almost surely, 2^{64864527341263} is an apocalyptic number.

64864527341263 is a deficient number, since it is larger than the sum of its proper divisors (9101475559793).

64864527341263 is a wasteful number, since it uses less digits than its factorization.

64864527341263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11235954.

The product of its digits is 139345920, while the sum is 61.

The spelling of 64864527341263 in words is "sixty-four trillion, eight hundred sixty-four billion, five hundred twenty-seven million, three hundred forty-one thousand, two hundred sixty-three".