64458929920 has 864 divisors, whose sum is σ = 213975207936. Its totient is φ = 18048614400.

The previous prime is 64458929881. The next prime is 64458929939. The reversal of 64458929920 is 2992985446.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 882999004 + ... + 882999076.

Almost surely, 2^64458929920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64458929920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106987603968).

64458929920 is an abundant number, since it is smaller than the sum of its proper divisors (149516278016).

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

64458929920 is a wasteful number, since it uses less digits than its factorization.

64458929920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 58.

The spelling of 64458929920 in words is "sixty-four billion, four hundred fifty-eight million, nine hundred twenty-nine thousand, nine hundred twenty".