71752260617 has 4 divisors (see below), whose sum is σ = 73502315796. Its totient is φ = 70002205440.

The previous prime is 71752260571. The next prime is 71752260623. The reversal of 71752260617 is 71606225717.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2459068921 + 69293191696 = 49589^2 + 263236^2 .

It is a cyclic number.

It is not a de Polignac number, because 71752260617 - 2²⁴ = 71735483401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71752260647) 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, 875027528 + ... + 875027609.

It is an arithmetic number, because the mean of its divisors is an integer number (18375578949).

Almost surely, 2^71752260617 is an apocalyptic number.

It is an amenable number.

71752260617 is a deficient number, since it is larger than the sum of its proper divisors (1750055179).

71752260617 is a wasteful number, since it uses less digits than its factorization.

71752260617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750055178.

The product of its (nonzero) digits is 246960, while the sum is 44.

The spelling of 71752260617 in words is "seventy-one billion, seven hundred fifty-two million, two hundred sixty thousand, six hundred seventeen".