68937512 has 80 divisors (see below), whose sum is σ = 156463860. Its totient is φ = 28449792.

The previous prime is 68937493. The next prime is 68937527. The reversal of 68937512 is 21573986.

It can be written as a sum of positive squares in 2 ways, for example, as 66161956 + 2775556 = 8134^2 + 1666^2 .

Its product of digits (90720) is a multiple of the sum of its prime factors (168).

It is a self number, because there is not a number n which added to its sum of digits gives 68937512.

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 19 ways as a sum of consecutive naturals, for example, 710648 + ... + 710744.

Almost surely, 2^68937512 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 68937512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78231930).

68937512 is an abundant number, since it is smaller than the sum of its proper divisors (87526348).

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

68937512 is an equidigital number, since it uses as much as digits as its factorization.

68937512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 143 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 68937512 is about 8302.8616753503. The cubic root of 68937512 is about 410.0327398008.

The spelling of 68937512 in words is "sixty-eight million, nine hundred thirty-seven thousand, five hundred twelve".