64935786364 has 12 divisors (see below), whose sum is σ = 113874868800. Its totient is φ = 32400109568.

The previous prime is 64935786317. The next prime is 64935786367. The reversal of 64935786364 is 46368753946.

It is a super-2 number, since 2×64935786364² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64935786367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16943749 + ... + 16947580.

It is an arithmetic number, because the mean of its divisors is an integer number (9489572400).

Almost surely, 2^64935786364 is an apocalyptic number.

It is an amenable number.

64935786364 is a deficient number, since it is larger than the sum of its proper divisors (48939082436).

64935786364 is a wasteful number, since it uses less digits than its factorization.

64935786364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33891812 (or 33891810 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 61.

The spelling of 64935786364 in words is "sixty-four billion, nine hundred thirty-five million, seven hundred eighty-six thousand, three hundred sixty-four".