71117172423461 has 16 divisors (see below), whose sum is σ = 79788646949760. Its totient is φ = 62991036979200.

The previous prime is 71117172423449. The next prime is 71117172423469. The reversal of 71117172423461 is 16432427171117.

It is a cyclic number.

It is not a de Polignac number, because 71117172423461 - 2⁶ = 71117172423397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71117172423469) 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, 729014156 + ... + 729111701.

It is an arithmetic number, because the mean of its divisors is an integer number (4986790434360).

Almost surely, 2^{71117172423461} is an apocalyptic number.

It is an amenable number.

71117172423461 is a deficient number, since it is larger than the sum of its proper divisors (8671474526299).

71117172423461 is a wasteful number, since it uses less digits than its factorization.

71117172423461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458126044.

The product of its digits is 395136, while the sum is 47.

Adding to 71117172423461 its reverse (16432427171117), we get a palindrome (87549599594578).

The spelling of 71117172423461 in words is "seventy-one trillion, one hundred seventeen billion, one hundred seventy-two million, four hundred twenty-three thousand, four hundred sixty-one".