64651268 has 36 divisors (see below), whose sum is σ = 125126400. Its totient is φ = 29206320.

The previous prime is 64651267. The next prime is 64651283. The reversal of 64651268 is 86215646.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (64651267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107633 + ... + 108231.

Almost surely, 2^64651268 is an apocalyptic number.

It is an amenable number.

64651268 is a deficient number, since it is larger than the sum of its proper divisors (60475132).

64651268 is a wasteful number, since it uses less digits than its factorization.

64651268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848 (or 835 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 64651268 is about 8040.6012213018. The cubic root of 64651268 is about 401.3522318546.

The spelling of 64651268 in words is "sixty-four million, six hundred fifty-one thousand, two hundred sixty-eight".