68782788 has 36 divisors (see below), whose sum is σ = 181429248. Its totient is φ = 21930480.

The previous prime is 68782787. The next prime is 68782829. The reversal of 68782788 is 88728786.

It is a tau number, because it is divible by the number of its divisors (36).

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (68782783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40708 + ... + 42363.

Almost surely, 2^68782788 is an apocalyptic number.

It is an amenable number.

68782788 is an abundant number, since it is smaller than the sum of its proper divisors (112646460).

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

68782788 is a wasteful number, since it uses less digits than its factorization.

68782788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83104 (or 83099 counting only the distinct ones).

The product of its digits is 2408448, while the sum is 54.

The square root of 68782788 is about 8293.5389309992. The cubic root of 68782788 is about 409.7257495702.

The spelling of 68782788 in words is "sixty-eight million, seven hundred eighty-two thousand, seven hundred eighty-eight".