71365056497 has 8 divisors (see below), whose sum is σ = 81675105600. Its totient is φ = 61083767664.

The previous prime is 71365056487. The next prime is 71365056523. The reversal of 71365056497 is 79465056317.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71365056497 - 2¹⁸ = 71364794353 is a prime.

It is a super-2 number, since 2×71365056497² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71365056467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7184747 + ... + 7194672.

It is an arithmetic number, because the mean of its divisors is an integer number (10209388200).

Almost surely, 2^71365056497 is an apocalyptic number.

It is an amenable number.

71365056497 is a deficient number, since it is larger than the sum of its proper divisors (10310049103).

71365056497 is a wasteful number, since it uses less digits than its factorization.

71365056497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14380135.

The product of its (nonzero) digits is 4762800, while the sum is 53.

The spelling of 71365056497 in words is "seventy-one billion, three hundred sixty-five million, fifty-six thousand, four hundred ninety-seven".