68517080 has 16 divisors (see below), whose sum is σ = 154163520. Its totient is φ = 27406816.

The previous prime is 68517079. The next prime is 68517101. The reversal of 68517080 is 8071586.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 68517080.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 856424 + ... + 856503.

It is an arithmetic number, because the mean of its divisors is an integer number (9635220).

Almost surely, 2^68517080 is an apocalyptic number.

It is an amenable number.

68517080 is an abundant number, since it is smaller than the sum of its proper divisors (85646440).

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

68517080 is a wasteful number, since it uses less digits than its factorization.

68517080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712938 (or 1712934 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 68517080 is about 8277.5044548463. The cubic root of 68517080 is about 409.1974783789.

It can be divided in two parts, 6851 and 7080, that added together give a palindrome (13931).

The spelling of 68517080 in words is "sixty-eight million, five hundred seventeen thousand, eighty".