68720822852 has 24 divisors (see below), whose sum is σ = 131399023392. Its totient is φ = 31187993600.

The previous prime is 68720822839. The next prime is 68720822861. The reversal of 68720822852 is 25822802786.

It is a self number, because there is not a number n which added to its sum of digits gives 68720822852.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1190078 + ... + 1246485.

It is an arithmetic number, because the mean of its divisors is an integer number (5474959308).

Almost surely, 2^68720822852 is an apocalyptic number.

It is an amenable number.

68720822852 is a deficient number, since it is larger than the sum of its proper divisors (62678200540).

68720822852 is a wasteful number, since it uses less digits than its factorization.

68720822852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437219 (or 2437217 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 50.

The spelling of 68720822852 in words is "sixty-eight billion, seven hundred twenty million, eight hundred twenty-two thousand, eight hundred fifty-two".