73144427797824 has 224 divisors, whose sum is σ = 208097056195200. Its totient is φ = 22593124761600.

The previous prime is 73144427797729. The next prime is 73144427797871. The reversal of 73144427797824 is 42879772444137.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58390092 + ... + 59629620.

Almost surely, 2^{73144427797824} 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 73144427797824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104048528097600).

73144427797824 is an abundant number, since it is smaller than the sum of its proper divisors (134952628397376).

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

73144427797824 is a wasteful number, since it uses less digits than its factorization.

73144427797824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239841 (or 1239831 counting only the distinct ones).

The product of its digits is 531062784, while the sum is 69.

The spelling of 73144427797824 in words is "seventy-three trillion, one hundred forty-four billion, four hundred twenty-seven million, seven hundred ninety-seven thousand, eight hundred twenty-four".