68513180 has 48 divisors (see below), whose sum is σ = 147117600. Its totient is φ = 26796288.

The previous prime is 68513161. The next prime is 68513189. The reversal of 68513180 is 8131586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68513189) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 247202 + ... + 247478.

It is an arithmetic number, because the mean of its divisors is an integer number (3064950).

Almost surely, 2^68513180 is an apocalyptic number.

It is an amenable number.

68513180 is an abundant number, since it is smaller than the sum of its proper divisors (78604420).

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

68513180 is a wasteful number, since it uses less digits than its factorization.

68513180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 68513180 is about 8277.2688732456. The cubic root of 68513180 is about 409.1897143759.

The spelling of 68513180 in words is "sixty-eight million, five hundred thirteen thousand, one hundred eighty".