71258842461 has 16 divisors (see below), whose sum is σ = 95141542400. Its totient is φ = 47441068848.

The previous prime is 71258842451. The next prime is 71258842513. The reversal of 71258842461 is 16424885217.

It is a happy number.

It is not a de Polignac number, because 71258842461 - 2¹¹ = 71258840413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71258842461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71258842411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7641960 + ... + 7651278.

It is an arithmetic number, because the mean of its divisors is an integer number (5946346400).

Almost surely, 2^71258842461 is an apocalyptic number.

It is an amenable number.

71258842461 is a deficient number, since it is larger than the sum of its proper divisors (23882699939).

71258842461 is a wasteful number, since it uses less digits than its factorization.

71258842461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12528.

The product of its digits is 860160, while the sum is 48.

The spelling of 71258842461 in words is "seventy-one billion, two hundred fifty-eight million, eight hundred forty-two thousand, four hundred sixty-one".