73394786880 has 784 divisors, whose sum is σ = 285839611200. Its totient is φ = 17871114240.

The previous prime is 73394786867. The next prime is 73394786891. The reversal of 73394786880 is 8868749337.

73394786880 is a `hidden beast` number, since 73 + 39 + 478 + 68 + 8 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 128536995 + ... + 128537565.

Almost surely, 2^73394786880 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 73394786880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142919805600).

73394786880 is an abundant number, since it is smaller than the sum of its proper divisors (212444824320).

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

73394786880 is a wasteful number, since it uses less digits than its factorization.

73394786880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 63.

The spelling of 73394786880 in words is "seventy-three billion, three hundred ninety-four million, seven hundred eighty-six thousand, eight hundred eighty".