68730934320 has 160 divisors (see below), whose sum is σ = 237444891840. Its totient is φ = 18273669120.

The previous prime is 68730934277. The next prime is 68730934331. The reversal of 68730934320 is 2343903786.

68730934320 is a `hidden beast` number, since 68 + 73 + 0 + 93 + 432 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 680710 + ... + 775130.

It is an arithmetic number, because the mean of its divisors is an integer number (1484030574).

Almost surely, 2^68730934320 is an apocalyptic number.

68730934320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68730934320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118722445920).

68730934320 is an abundant number, since it is smaller than the sum of its proper divisors (168713957520).

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

68730934320 is a wasteful number, since it uses less digits than its factorization.

68730934320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94780 (or 94768 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 68730934320 in words is "sixty-eight billion, seven hundred thirty million, nine hundred thirty-four thousand, three hundred twenty".