71468253965 has 4 divisors (see below), whose sum is σ = 85761904764. Its totient is φ = 57174603168.

The previous prime is 71468253911. The next prime is 71468253977. The reversal of 71468253965 is 56935286417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56935286417 = 131 ⋅434620507.

It can be written as a sum of positive squares in 2 ways, for example, as 51738961444 + 19729292521 = 227462^2 + 140461^2 .

It is a cyclic number.

It is not a de Polignac number, because 71468253965 - 2¹⁰ = 71468252941 is a prime.

It is a super-2 number, since 2×71468253965² (a number of 23 digits) contains 22 as substring.

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 71468253965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7146825392 + ... + 7146825401.

It is an arithmetic number, because the mean of its divisors is an integer number (21440476191).

Almost surely, 2^71468253965 is an apocalyptic number.

It is an amenable number.

71468253965 is a deficient number, since it is larger than the sum of its proper divisors (14293650799).

71468253965 is a wasteful number, since it uses less digits than its factorization.

71468253965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14293650798.

The product of its digits is 10886400, while the sum is 56.

The spelling of 71468253965 in words is "seventy-one billion, four hundred sixty-eight million, two hundred fifty-three thousand, nine hundred sixty-five".