67864040244 has 384 divisors, whose sum is σ = 236900966400. Its totient is φ = 16225090560.

The previous prime is 67864040219. The next prime is 67864040303. The reversal of 67864040244 is 44204046876.

It is a self number, because there is not a number n which added to its sum of digits gives 67864040244.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 52647952 + ... + 52649240.

It is an arithmetic number, because the mean of its divisors is an integer number (616929600).

Almost surely, 2^67864040244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67864040244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118450483200).

67864040244 is an abundant number, since it is smaller than the sum of its proper divisors (169036926156).

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

67864040244 is a wasteful number, since it uses less digits than its factorization.

67864040244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820 (or 1812 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 45.

The spelling of 67864040244 in words is "sixty-seven billion, eight hundred sixty-four million, forty thousand, two hundred forty-four".