63640060970 has 16 divisors (see below), whose sum is σ = 114563936520. Its totient is φ = 25453396224.

The previous prime is 63640060919. The next prime is 63640061011. The reversal of 63640060970 is 7906004636.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 57790717609 + 5849343361 = 240397^2 + 76481^2 .

It is an unprimeable number.

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, 225275 + ... + 421934.

Almost surely, 2^63640060970 is an apocalyptic number.

63640060970 is a deficient number, since it is larger than the sum of its proper divisors (50923875550).

63640060970 is a wasteful number, since it uses less digits than its factorization.

63640060970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657049.

The product of its (nonzero) digits is 163296, while the sum is 41.

The spelling of 63640060970 in words is "sixty-three billion, six hundred forty million, sixty thousand, nine hundred seventy".