68211320920 has 64 divisors (see below), whose sum is σ = 154435248000. Its totient is φ = 27114232320.

The previous prime is 68211320851. The next prime is 68211320923. The reversal of 68211320920 is 2902311286.

68211320920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×68211320920³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68211320923) 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, 7410481 + ... + 7419679.

It is an arithmetic number, because the mean of its divisors is an integer number (2413050750).

Almost surely, 2^68211320920 is an apocalyptic number.

It is an amenable number.

68211320920 is an abundant number, since it is smaller than the sum of its proper divisors (86223927080).

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

68211320920 is a wasteful number, since it uses less digits than its factorization.

68211320920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10348 (or 10344 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 68211320920 in words is "sixty-eight billion, two hundred eleven million, three hundred twenty thousand, nine hundred twenty".