67853840736 has 96 divisors (see below), whose sum is σ = 194860245888. Its totient is φ = 20503408640.

The previous prime is 67853840731. The next prime is 67853840861. The reversal of 67853840736 is 63704835876.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67853840731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281755 + ... + 463781.

It is an arithmetic number, because the mean of its divisors is an integer number (2029794228).

Almost surely, 2^67853840736 is an apocalyptic number.

67853840736 is a gapful number since it is divisible by the number (66) 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 67853840736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97430122944).

67853840736 is an abundant number, since it is smaller than the sum of its proper divisors (127006405152).

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

67853840736 is a wasteful number, since it uses less digits than its factorization.

67853840736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182404 (or 182396 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 57.

The spelling of 67853840736 in words is "sixty-seven billion, eight hundred fifty-three million, eight hundred forty thousand, seven hundred thirty-six".