68573780 has 48 divisors (see below), whose sum is σ = 157719744. Its totient is φ = 24837120.

The previous prime is 68573779. The next prime is 68573789. The reversal of 68573780 is 8737586.

68573780 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44).

68573780 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68573789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77219 + ... + 78101.

It is an arithmetic number, because the mean of its divisors is an integer number (3285828).

Almost surely, 2^68573780 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 68573780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78859872).

68573780 is an abundant number, since it is smaller than the sum of its proper divisors (89145964).

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

68573780 is a wasteful number, since it uses less digits than its factorization.

68573780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256 (or 1254 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 68573780 is about 8280.9286918799. The cubic root of 68573780 is about 409.3103217749.

68573780 divided by its sum of digits (44) gives a triangular number (1558495 = T₁₇₆₅).

The spelling of 68573780 in words is "sixty-eight million, five hundred seventy-three thousand, seven hundred eighty".