68788780 has 12 divisors (see below), whose sum is σ = 144456480. Its totient is φ = 27515504.

The previous prime is 68788763. The next prime is 68788781. The reversal of 68788780 is 8788786.

It is not an unprimeable number, because it can be changed into a prime (68788781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1719700 + ... + 1719739.

It is an arithmetic number, because the mean of its divisors is an integer number (12038040).

Almost surely, 2^68788780 is an apocalyptic number.

It is an amenable number.

68788780 is an abundant number, since it is smaller than the sum of its proper divisors (75667700).

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

68788780 is a wasteful number, since it uses less digits than its factorization.

68788780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3439448 (or 3439446 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 52.

The square root of 68788780 is about 8293.9001681959. The cubic root of 68788780 is about 409.7376469527.

The spelling of 68788780 in words is "sixty-eight million, seven hundred eighty-eight thousand, seven hundred eighty".