75443034457 has 8 divisors (see below), whose sum is σ = 86224780800. Its totient is φ = 64662330624.

The previous prime is 75443034383. The next prime is 75443034581.

It is a happy number.

75443034457 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75443034457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75443034157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98857 + ... + 400822.

It is an arithmetic number, because the mean of its divisors is an integer number (10778097600).

Almost surely, 2^75443034457 is an apocalyptic number.

It is an amenable number.

75443034457 is a deficient number, since it is larger than the sum of its proper divisors (10781746343).

75443034457 is a wasteful number, since it uses less digits than its factorization.

75443034457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521255.

The product of its (nonzero) digits is 2822400, while the sum is 46.

It can be divided in two parts, 754430 and 34457, that added together give a palindrome (788887).

The spelling of 75443034457 in words is "seventy-five billion, four hundred forty-three million, thirty-four thousand, four hundred fifty-seven".