64780058112 has 320 divisors, whose sum is σ = 215839185408. Its totient is φ = 16773120000.

The previous prime is 64780058111. The next prime is 64780058149. The reversal of 64780058112 is 21185008746.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64780058111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49791862 + ... + 49793162.

Almost surely, 2^64780058112 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 64780058112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107919592704).

64780058112 is an abundant number, since it is smaller than the sum of its proper divisors (151059127296).

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

64780058112 is a wasteful number, since it uses less digits than its factorization.

64780058112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761 (or 1745 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The spelling of 64780058112 in words is "sixty-four billion, seven hundred eighty million, fifty-eight thousand, one hundred twelve".