68450699520 has 216 divisors, whose sum is σ = 270665793216. Its totient is φ = 15645855744.

The previous prime is 68450699501. The next prime is 68450699531. The reversal of 68450699520 is 2599605486.

It is a happy number.

68450699520 is a `hidden beast` number, since 6 + 8 + 4 + 50 + 69 + 9 + 520 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 343782 + ... + 505061.

It is an arithmetic number, because the mean of its divisors is an integer number (1253082376).

Almost surely, 2^68450699520 is an apocalyptic number.

68450699520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68450699520 is an abundant number, since it is smaller than the sum of its proper divisors (202215093696).

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

68450699520 is a wasteful number, since it uses less digits than its factorization.

68450699520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848877 (or 848860 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 68450699520 in words is "sixty-eight billion, four hundred fifty million, six hundred ninety-nine thousand, five hundred twenty".