68720394300 has 72 divisors (see below), whose sum is σ = 200165574000. Its totient is φ = 18202437120.

The previous prime is 68720394287. The next prime is 68720394307. The reversal of 68720394300 is 349302786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68720394307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 723985 + ... + 813384.

Almost surely, 2^68720394300 is an apocalyptic number.

68720394300 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68720394300 is an abundant number, since it is smaller than the sum of its proper divisors (131445179700).

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

68720394300 is a wasteful number, since it uses less digits than its factorization.

68720394300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537535 (or 1537528 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 68720394300 in words is "sixty-eight billion, seven hundred twenty million, three hundred ninety-four thousand, three hundred".