68210780 has 24 divisors (see below), whose sum is σ = 156265200. Its totient is φ = 24803840.

The previous prime is 68210759. The next prime is 68210797. The reversal of 68210780 is 8701286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154805 + ... + 155244.

It is an arithmetic number, because the mean of its divisors is an integer number (6511050).

Almost surely, 2^68210780 is an apocalyptic number.

It is an amenable number.

68210780 is an abundant number, since it is smaller than the sum of its proper divisors (88054420).

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

68210780 is a wasteful number, since it uses less digits than its factorization.

68210780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310069 (or 310067 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 68210780 is about 8258.9817774348. The cubic root of 68210780 is about 408.5868062042.

The spelling of 68210780 in words is "sixty-eight million, two hundred ten thousand, seven hundred eighty".