71045273603 has 4 divisors (see below), whose sum is σ = 71045878800. Its totient is φ = 71044668408.

The previous prime is 71045273567. The next prime is 71045273617. The reversal of 71045273603 is 30637254017.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 30637254017 = 86599 ⋅353783.

It is a cyclic number.

It is not a de Polignac number, because 71045273603 - 2¹⁶ = 71045208067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71045273653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63575 + ... + 382272.

It is an arithmetic number, because the mean of its divisors is an integer number (17761469700).

Almost surely, 2^71045273603 is an apocalyptic number.

71045273603 is a deficient number, since it is larger than the sum of its proper divisors (605197).

71045273603 is a wasteful number, since it uses less digits than its factorization.

71045273603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605196.

The product of its (nonzero) digits is 105840, while the sum is 38.

The spelling of 71045273603 in words is "seventy-one billion, forty-five million, two hundred seventy-three thousand, six hundred three".