64276815841 has 32 divisors (see below), whose sum is σ = 77273906688. Its totient is φ = 52273858560.

The previous prime is 64276815821. The next prime is 64276815851. The reversal of 64276815841 is 14851867246.

It is not a de Polignac number, because 64276815841 - 2¹⁵ = 64276783073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64276815821) 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 31 ways as a sum of consecutive naturals, for example, 11193231 + ... + 11198971.

It is an arithmetic number, because the mean of its divisors is an integer number (2414809584).

Almost surely, 2^64276815841 is an apocalyptic number.

It is an amenable number.

64276815841 is a deficient number, since it is larger than the sum of its proper divisors (12997090847).

64276815841 is a wasteful number, since it uses less digits than its factorization.

64276815841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6321.

The product of its digits is 2580480, while the sum is 52.

The spelling of 64276815841 in words is "sixty-four billion, two hundred seventy-six million, eight hundred fifteen thousand, eight hundred forty-one".