64630859076 has 81 divisors (see below), whose sum is σ = 190076904381. Its totient is φ = 18462909024.

The previous prime is 64630859057. The next prime is 64630859081. The reversal of 64630859076 is 67095803646.

The square root of 64630859076 is 254226.

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

64630859076 is a `hidden beast` number, since 6 + 46 + 3 + 0 + 8 + 590 + 7 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4715568900 + 59915290176 = 68670^2 + 244776^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10674466 + ... + 10680518.

Almost surely, 2^64630859076 is an apocalyptic number.

64630859076 is the 254226-th square number.

It is an amenable number.

64630859076 is an abundant number, since it is smaller than the sum of its proper divisors (125446045305).

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

64630859076 is an equidigital number, since it uses as much as digits as its factorization.

64630859076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12130 (or 6065 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 64630859076 in words is "sixty-four billion, six hundred thirty million, eight hundred fifty-nine thousand, seventy-six".