67872770722 has 4 divisors (see below), whose sum is σ = 101809156086. Its totient is φ = 33936385360.

The previous prime is 67872770687. The next prime is 67872770723. The reversal of 67872770722 is 22707727876.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 57570723721 + 10302047001 = 239939^2 + 101499^2 .

It is not an unprimeable number, because it can be changed into a prime (67872770723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16968192679 + ... + 16968192682.

Almost surely, 2^67872770722 is an apocalyptic number.

67872770722 is a deficient number, since it is larger than the sum of its proper divisors (33936385364).

67872770722 is a wasteful number, since it uses less digits than its factorization.

67872770722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33936385363.

The product of its (nonzero) digits is 6453888, while the sum is 55.

The spelling of 67872770722 in words is "sixty-seven billion, eight hundred seventy-two million, seven hundred seventy thousand, seven hundred twenty-two".