68833641240 has 1280 divisors, whose sum is σ = 311925841920. Its totient is φ = 13198049280.

The previous prime is 68833641229. The next prime is 68833641241. The reversal of 68833641240 is 4214633886.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68833641241) by changing a digit.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 155380459 + ... + 155380901.

It is an arithmetic number, because the mean of its divisors is an integer number (243692064).

Almost surely, 2^68833641240 is an apocalyptic number.

68833641240 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 68833641240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155962920960).

68833641240 is an abundant number, since it is smaller than the sum of its proper divisors (243092200680).

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

68833641240 is a wasteful number, since it uses less digits than its factorization.

68833641240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 68833641240 in words is "sixty-eight billion, eight hundred thirty-three million, six hundred forty-one thousand, two hundred forty".