64909170682 has 8 divisors (see below), whose sum is σ = 98017204500. Its totient is φ = 32236769184.

The previous prime is 64909170661. The next prime is 64909170691. The reversal of 64909170682 is 28607190946.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 64546991721 + 362178961 = 254061^2 + 19031^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108907707 + ... + 108908302.

Almost surely, 2^64909170682 is an apocalyptic number.

64909170682 is a deficient number, since it is larger than the sum of its proper divisors (33108033818).

64909170682 is a wasteful number, since it uses less digits than its factorization.

64909170682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217816160.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 64909170682 in words is "sixty-four billion, nine hundred nine million, one hundred seventy thousand, six hundred eighty-two".