68743512 has 128 divisors (see below), whose sum is σ = 205329600. Its totient is φ = 21233664.

The previous prime is 68743489. The next prime is 68743517. The reversal of 68743512 is 21534786.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68743517) 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 31 ways as a sum of consecutive naturals, for example, 356088 + ... + 356280.

Almost surely, 2^68743512 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 68743512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102664800).

68743512 is an abundant number, since it is smaller than the sum of its proper divisors (136586088).

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

68743512 is a wasteful number, since it uses less digits than its factorization.

68743512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 312 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 68743512 is about 8291.1707255369. The cubic root of 68743512 is about 409.6477482127.

The spelling of 68743512 in words is "sixty-eight million, seven hundred forty-three thousand, five hundred twelve".