64346829320 has 64 divisors (see below), whose sum is σ = 146615616000. Its totient is φ = 25413868800.

The previous prime is 64346829293. The next prime is 64346829343. The reversal of 64346829320 is 2392864346.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1460981 + ... + 1504379.

It is an arithmetic number, because the mean of its divisors is an integer number (2290869000).

Almost surely, 2^64346829320 is an apocalyptic number.

It is an amenable number.

64346829320 is an abundant number, since it is smaller than the sum of its proper divisors (82268786680).

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

64346829320 is a wasteful number, since it uses less digits than its factorization.

64346829320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43878 (or 43874 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 47.

The spelling of 64346829320 in words is "sixty-four billion, three hundred forty-six million, eight hundred twenty-nine thousand, three hundred twenty".