68811880707 has 12 divisors (see below), whose sum is σ = 99430511440. Its totient is φ = 45858169008.

The previous prime is 68811880699. The next prime is 68811880783. The reversal of 68811880707 is 70708811886.

It is a happy number.

It is not a de Polignac number, because 68811880707 - 2³ = 68811880699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68811880307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1341607 + ... + 1391952.

Almost surely, 2^68811880707 is an apocalyptic number.

68811880707 is a deficient number, since it is larger than the sum of its proper divisors (30618630733).

68811880707 is a wasteful number, since it uses less digits than its factorization.

68811880707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736362 (or 2736359 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 54.

The spelling of 68811880707 in words is "sixty-eight billion, eight hundred eleven million, eight hundred eighty thousand, seven hundred seven".