64945928622 has 8 divisors (see below), whose sum is σ = 129891857256. Its totient is φ = 21648642872.

The previous prime is 64945928569. The next prime is 64945928639. The reversal of 64945928622 is 22682954946.

It is a happy number.

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

64945928622 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5412160713 + ... + 5412160724.

It is an arithmetic number, because the mean of its divisors is an integer number (16236482157).

Almost surely, 2^64945928622 is an apocalyptic number.

64945928622 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64945928622 is a wasteful number, since it uses less digits than its factorization.

64945928622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10824321442.

The product of its digits is 14929920, while the sum is 57.

The spelling of 64945928622 in words is "sixty-four billion, nine hundred forty-five million, nine hundred twenty-eight thousand, six hundred twenty-two".