64882787841 has 27 divisors (see below), whose sum is σ = 94416794563. Its totient is φ = 42935771760.

The previous prime is 64882787791. The next prime is 64882787891. The reversal of 64882787841 is 14878728846.

The square root of 64882787841 is 254721.

It is a perfect power (a square), and thus also a powerful number.

64882787841 is a `hidden beast` number, since 6 + 488 + 2 + 78 + 7 + 84 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (64882787791) and next prime (64882787891).

It can be written as a sum of positive squares in only one way, i.e., 63572058225 + 1310729616 = 252135^2 + 36204^2 .

It is not a de Polignac number, because 64882787841 - 2⁹ = 64882787329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64882787891) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 150539896 + ... + 150540326.

Almost surely, 2^64882787841 is an apocalyptic number.

64882787841 is the 254721-st square number.

64882787841 is the 127361-st centered octagonal number.

It is an amenable number.

64882787841 is a deficient number, since it is larger than the sum of its proper divisors (29534006722).

64882787841 is an frugal number, since it uses more digits than its factorization.

64882787841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262 (or 631 counting only the distinct ones).

The product of its digits is 38535168, while the sum is 63.

The spelling of 64882787841 in words is "sixty-four billion, eight hundred eighty-two million, seven hundred eighty-seven thousand, eight hundred forty-one".