73404537984 has 512 divisors, whose sum is σ = 237738336000. Its totient is φ = 22493417472.

The previous prime is 73404537967. The next prime is 73404537991. The reversal of 73404537984 is 48973540437.

73404537984 is a `hidden beast` number, since 7 + 3 + 40 + 453 + 79 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 73404537984.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 196794822 + ... + 196795194.

Almost surely, 2^73404537984 is an apocalyptic number.

73404537984 is a gapful number since it is divisible by the number (74) 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 73404537984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118869168000).

73404537984 is an abundant number, since it is smaller than the sum of its proper divisors (164333798016).

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

73404537984 is an equidigital number, since it uses as much as digits as its factorization.

73404537984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

It can be divided in two parts, 7340453 and 7984, that added together give a palindrome (7348437).

The spelling of 73404537984 in words is "seventy-three billion, four hundred four million, five hundred thirty-seven thousand, nine hundred eighty-four".