64876165264 has 45 divisors (see below), whose sum is σ = 129261727371. Its totient is φ = 31543038720.

The previous prime is 64876165241. The next prime is 64876165267. The reversal of 64876165264 is 46256167846.

It is a happy number.

The square root of 64876165264 is 254708.

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

It can be written as a sum of positive squares in 4 ways, for example, as 27165632400 + 37710532864 = 164820^2 + 194192^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64876165267) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 37695924 + ... + 37697644.

Almost surely, 2^64876165264 is an apocalyptic number.

64876165264 is the 254708-th square number.

It is an amenable number.

64876165264 is a deficient number, since it is larger than the sum of its proper divisors (64385562107).

64876165264 is an frugal number, since it uses more digits than its factorization.

64876165264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3524 (or 1760 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 55.

It can be divided in two parts, 648761 and 65264, that added together give a square (714025 = 845²).

The spelling of 64876165264 in words is "sixty-four billion, eight hundred seventy-six million, one hundred sixty-five thousand, two hundred sixty-four".