64056572836 has 9 divisors (see below), whose sum is σ = 112099888299. Its totient is φ = 32028033324.

The previous prime is 64056572779. The next prime is 64056572851. The reversal of 64056572836 is 63827565046.

The square root of 64056572836 is 253094.

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 (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 442915 + ... + 569461.

Almost surely, 2^64056572836 is an apocalyptic number.

64056572836 is the 253094-th square number.

It is an amenable number.

64056572836 is a deficient number, since it is larger than the sum of its proper divisors (48043315463).

64056572836 is an frugal number, since it uses more digits than its factorization.

64056572836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253098 (or 126549 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 52.

The spelling of 64056572836 in words is "sixty-four billion, fifty-six million, five hundred seventy-two thousand, eight hundred thirty-six".