75004320636 has 288 divisors, whose sum is σ = 227793646080. Its totient is φ = 20357568000.

The previous prime is 75004320619. The next prime is 75004320649. The reversal of 75004320636 is 63602340057.

It is a super-2 number, since 2×75004320636² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 75004320636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 226598991 + ... + 226599321.

It is an arithmetic number, because the mean of its divisors is an integer number (790950160).

Almost surely, 2^75004320636 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 75004320636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113896823040).

75004320636 is an abundant number, since it is smaller than the sum of its proper divisors (152789325444).

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

75004320636 is a wasteful number, since it uses less digits than its factorization.

75004320636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The spelling of 75004320636 in words is "seventy-five billion, four million, three hundred twenty thousand, six hundred thirty-six".