64086947716 has 81 divisors (see below), whose sum is σ = 127105176261. Its totient is φ = 28251986400.

The previous prime is 64086947699. The next prime is 64086947777. The reversal of 64086947716 is 61774968046.

The square root of 64086947716 is 253154.

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

It can be written as a sum of positive squares in only one way, i.e., 57345880900 + 6741066816 = 239470^2 + 82104^2 .

It is a Duffinian number.

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, 206067201 + ... + 206067511.

Almost surely, 2^64086947716 is an apocalyptic number.

64086947716 is the 253154-th square number.

It is an amenable number.

64086947716 is a deficient number, since it is larger than the sum of its proper divisors (63018228545).

64086947716 is a wasteful number, since it uses less digits than its factorization.

64086947716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 58.

The spelling of 64086947716 in words is "sixty-four billion, eighty-six million, nine hundred forty-seven thousand, seven hundred sixteen".