68940722620 has 48 divisors (see below), whose sum is σ = 180499350528. Its totient is φ = 21488016960.

The previous prime is 68940722597. The next prime is 68940722639. The reversal of 68940722620 is 2622704986.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22381812 + ... + 22384891.

It is an arithmetic number, because the mean of its divisors is an integer number (3760403136).

Almost surely, 2^68940722620 is an apocalyptic number.

It is an amenable number.

68940722620 is an abundant number, since it is smaller than the sum of its proper divisors (111558627908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68940722620 is a wasteful number, since it uses less digits than its factorization.

68940722620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44766730 (or 44766728 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 68940722620 in words is "sixty-eight billion, nine hundred forty million, seven hundred twenty-two thousand, six hundred twenty".