68370730677 has 36 divisors (see below), whose sum is σ = 101828468196. Its totient is φ = 44179649280.

The previous prime is 68370730667. The next prime is 68370730721. The reversal of 68370730677 is 77603707386.

It can be written as a sum of positive squares in 6 ways, for example, as 3549061476 + 64821669201 = 59574^2 + 254601^2 .

It is not a de Polignac number, because 68370730677 - 2⁴ = 68370730661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68370730657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9091723 + ... + 9099239.

It is an arithmetic number, because the mean of its divisors is an integer number (2828568561).

Almost surely, 2^68370730677 is an apocalyptic number.

It is an amenable number.

68370730677 is a deficient number, since it is larger than the sum of its proper divisors (33457737519).

68370730677 is a wasteful number, since it uses less digits than its factorization.

68370730677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7878 (or 7718 counting only the distinct ones).

The product of its (nonzero) digits is 6223392, while the sum is 54.

The spelling of 68370730677 in words is "sixty-eight billion, three hundred seventy million, seven hundred thirty thousand, six hundred seventy-seven".