64804866624 has 63 divisors (see below), whose sum is σ = 185768963107. Its totient is φ = 21599585664.

The previous prime is 64804866611. The next prime is 64804866661. The reversal of 64804866624 is 42666840846.

The square root of 64804866624 is 254568.

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

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6104329 + ... + 6114935.

Almost surely, 2^64804866624 is an apocalyptic number.

64804866624 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

64804866624 is the 254568-th square number.

It is an amenable number.

64804866624 is an abundant number, since it is smaller than the sum of its proper divisors (120964096483).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64804866624 is an frugal number, since it uses more digits than its factorization.

64804866624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21232 (or 10612 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 54.

The spelling of 64804866624 in words is "sixty-four billion, eight hundred four million, eight hundred sixty-six thousand, six hundred twenty-four".