64706850672 has 40 divisors (see below), whose sum is σ = 168184902144. Its totient is φ = 21436622784.

The previous prime is 64706850667. The next prime is 64706850673. The reversal of 64706850672 is 27605860746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64706850673) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4127328 + ... + 4142975.

Almost surely, 2^64706850672 is an apocalyptic number.

It is an amenable number.

64706850672 is an abundant number, since it is smaller than the sum of its proper divisors (103478051472).

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

64706850672 is a wasteful number, since it uses less digits than its factorization.

64706850672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8270477 (or 8270471 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 64706850672 in words is "sixty-four billion, seven hundred six million, eight hundred fifty thousand, six hundred seventy-two".