68244418480 has 80 divisors (see below), whose sum is σ = 181376230464. Its totient is φ = 23392788480.

The previous prime is 68244418471. The next prime is 68244418483. The reversal of 68244418480 is 8481444286.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (68244418483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3080724 + ... + 3102796.

Almost surely, 2^68244418480 is an apocalyptic number.

It is an amenable number.

68244418480 is an abundant number, since it is smaller than the sum of its proper divisors (113131811984).

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

68244418480 is a wasteful number, since it uses less digits than its factorization.

68244418480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27614 (or 27608 counting only the distinct ones).

The product of its (nonzero) digits is 1572864, while the sum is 49.

The spelling of 68244418480 in words is "sixty-eight billion, two hundred forty-four million, four hundred eighteen thousand, four hundred eighty".