64045683570 has 64 divisors (see below), whose sum is σ = 169069161600. Its totient is φ = 15526216640.

The previous prime is 64045683497. The next prime is 64045683589. The reversal of 64045683570 is 7538654046.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 762045 + ... + 841904.

It is an arithmetic number, because the mean of its divisors is an integer number (2641705650).

Almost surely, 2^64045683570 is an apocalyptic number.

64045683570 is an abundant number, since it is smaller than the sum of its proper divisors (105023478030).

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

64045683570 is a wasteful number, since it uses less digits than its factorization.

64045683570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603992 (or 1603970 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 48.

The spelling of 64045683570 in words is "sixty-four billion, forty-five million, six hundred eighty-three thousand, five hundred seventy".