68407272853830 has 128 divisors (see below), whose sum is σ = 183199358361600. Its totient is φ = 18163956972672.

The previous prime is 68407272853807. The next prime is 68407272853859. The reversal of 68407272853830 is 3835827270486.

68407272853830 is a `hidden beast` number, since 6 + 8 + 4 + 0 + 72 + 7 + 28 + 538 + 3 + 0 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 813874867 + ... + 813958913.

It is an arithmetic number, because the mean of its divisors is an integer number (1431244987200).

Almost surely, 2^{68407272853830} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68407272853830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91599679180800).

68407272853830 is an abundant number, since it is smaller than the sum of its proper divisors (114792085507770).

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

68407272853830 is a wasteful number, since it uses less digits than its factorization.

68407272853830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96915 (or 96909 counting only the distinct ones).

The product of its (nonzero) digits is 108380160, while the sum is 63.

The spelling of 68407272853830 in words is "sixty-eight trillion, four hundred seven billion, two hundred seventy-two million, eight hundred fifty-three thousand, eight hundred thirty".