68770885777 has 16 divisors (see below), whose sum is σ = 76161069504. Its totient is φ = 61570872000.

The previous prime is 68770885727. The next prime is 68770885811. The reversal of 68770885777 is 77758807786.

It is a de Polignac number, because none of the positive numbers 2^k-68770885777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68770885727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3957127 + ... + 3974467.

It is an arithmetic number, because the mean of its divisors is an integer number (4760066844).

Almost surely, 2^68770885777 is an apocalyptic number.

68770885777 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

68770885777 is a deficient number, since it is larger than the sum of its proper divisors (7390183727).

68770885777 is a wasteful number, since it uses less digits than its factorization.

68770885777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22800.

The product of its (nonzero) digits is 258155520, while the sum is 70.

The spelling of 68770885777 in words is "sixty-eight billion, seven hundred seventy million, eight hundred eighty-five thousand, seven hundred seventy-seven".