64842680 has 48 divisors (see below), whose sum is σ = 169720920. Its totient is φ = 22231104.

The previous prime is 64842619. The next prime is 64842697. The reversal of 64842680 is 8624846.

It is a happy number.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 14582 + ... + 18501.

Almost surely, 2^64842680 is an apocalyptic number.

It is an amenable number.

64842680 is an abundant number, since it is smaller than the sum of its proper divisors (104878240).

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

64842680 is a wasteful number, since it uses less digits than its factorization.

64842680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33108 (or 33097 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 64842680 is about 8052.4952654441. The cubic root of 64842680 is about 401.7479340241.

The spelling of 64842680 in words is "sixty-four million, eight hundred forty-two thousand, six hundred eighty".