68505953280 has 88 divisors (see below), whose sum is σ = 219112059072. Its totient is φ = 18268250112.

The previous prime is 68505953267. The next prime is 68505953281. The reversal of 68505953280 is 8235950586.

It is not an unprimeable number, because it can be changed into a prime (68505953281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2214652 + ... + 2245371.

Almost surely, 2^68505953280 is an apocalyptic number.

68505953280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68505953280 is an abundant number, since it is smaller than the sum of its proper divisors (150606105792).

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

68505953280 is a wasteful number, since it uses less digits than its factorization.

68505953280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4460051 (or 4460033 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 51.

The spelling of 68505953280 in words is "sixty-eight billion, five hundred five million, nine hundred fifty-three thousand, two hundred eighty".