64386725210 has 16 divisors (see below), whose sum is σ = 116634299976. Its totient is φ = 25590646848.

The previous prime is 64386725201. The next prime is 64386725237. The reversal of 64386725210 is 1252768346.

It can be written as a sum of positive squares in 4 ways, for example, as 35026245409 + 29360479801 = 187153^2 + 171349^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20503757 + ... + 20506896.

Almost surely, 2^64386725210 is an apocalyptic number.

64386725210 is a deficient number, since it is larger than the sum of its proper divisors (52247574766).

64386725210 is a wasteful number, since it uses less digits than its factorization.

64386725210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41010817.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 64386725210 in words is "sixty-four billion, three hundred eighty-six million, seven hundred twenty-five thousand, two hundred ten".