75028800061445 has 8 divisors (see below), whose sum is σ = 90107344689144. Its totient is φ = 59974516972224.

The previous prime is 75028800061441. The next prime is 75028800061447. The reversal of 75028800061445 is 54416000882057.

It can be written as a sum of positive squares in 4 ways, for example, as 33435768122689 + 41593031938756 = 5782367^2 + 6449266^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75028800061445 - 2² = 75028800061441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75028800061393 and 75028800061402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75028800061441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6065377814 + ... + 6065390183.

It is an arithmetic number, because the mean of its divisors is an integer number (11263418086143).

Almost surely, 2^{75028800061445} is an apocalyptic number.

It is an amenable number.

75028800061445 is a deficient number, since it is larger than the sum of its proper divisors (15078544627699).

75028800061445 is a wasteful number, since it uses less digits than its factorization.

75028800061445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12130769239.

The product of its (nonzero) digits is 2150400, while the sum is 50.

The spelling of 75028800061445 in words is "seventy-five trillion, twenty-eight billion, eight hundred million, sixty-one thousand, four hundred forty-five".