68812988 has 12 divisors (see below), whose sum is σ = 120605352. Its totient is φ = 34354320.

The previous prime is 68812981. The next prime is 68812993. The reversal of 68812988 is 88921886.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68812981) 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, 9998 + ... + 15413.

It is an arithmetic number, because the mean of its divisors is an integer number (10050446).

Almost surely, 2^68812988 is an apocalyptic number.

It is an amenable number.

68812988 is a deficient number, since it is larger than the sum of its proper divisors (51792364).

68812988 is a wasteful number, since it uses less digits than its factorization.

68812988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26092 (or 26090 counting only the distinct ones).

The product of its digits is 442368, while the sum is 50.

The square root of 68812988 is about 8295.3594256066. The cubic root of 68812988 is about 409.7857059803.

The spelling of 68812988 in words is "sixty-eight million, eight hundred twelve thousand, nine hundred eighty-eight".