68904202847040 has 672 divisors, whose sum is σ = 262784521838592. Its totient is φ = 16431367680000.

The previous prime is 68904202846979. The next prime is 68904202847041. The reversal of 68904202847040 is 4074820240986.

68904202847040 is a `hidden beast` number, since 6 + 8 + 90 + 4 + 20 + 28 + 470 + 40 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68904202847041) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 996396465 + ... + 996465615.

Almost surely, 2^{68904202847040} is an apocalyptic number.

68904202847040 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 68904202847040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131392260919296).

68904202847040 is an abundant number, since it is smaller than the sum of its proper divisors (193880318991552).

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

68904202847040 is a wasteful number, since it uses less digits than its factorization.

68904202847040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69699 (or 69686 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 68904202847040 in words is "sixty-eight trillion, nine hundred four billion, two hundred two million, eight hundred forty-seven thousand, forty".