75943551272 has 8 divisors (see below), whose sum is σ = 142394158650. Its totient is φ = 37971775632.

The previous prime is 75943551253. The next prime is 75943551283. The reversal of 75943551272 is 27215534957.

It can be written as a sum of positive squares in only one way, i.e., 47161071556 + 28782479716 = 217166^2 + 169654^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 75943551272.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4746471947 + ... + 4746471962.

Almost surely, 2^75943551272 is an apocalyptic number.

It is an amenable number.

75943551272 is a deficient number, since it is larger than the sum of its proper divisors (66450607378).

75943551272 is a wasteful number, since it uses less digits than its factorization.

75943551272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9492943915 (or 9492943911 counting only the distinct ones).

The product of its digits is 2646000, while the sum is 50.

The spelling of 75943551272 in words is "seventy-five billion, nine hundred forty-three million, five hundred fifty-one thousand, two hundred seventy-two".