68742680 has 16 divisors (see below), whose sum is σ = 154671120. Its totient is φ = 27497056.

The previous prime is 68742671. The next prime is 68742701. The reversal of 68742680 is 8624786.

It is a super-3 number, since 3×68742680³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 859244 + ... + 859323.

It is an arithmetic number, because the mean of its divisors is an integer number (9666945).

Almost surely, 2^68742680 is an apocalyptic number.

It is an amenable number.

68742680 is an abundant number, since it is smaller than the sum of its proper divisors (85928440).

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

68742680 is a wasteful number, since it uses less digits than its factorization.

68742680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718578 (or 1718574 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 68742680 is about 8291.1205515298. The cubic root of 68742680 is about 409.6460955559.

The spelling of 68742680 in words is "sixty-eight million, seven hundred forty-two thousand, six hundred eighty".