71319297893 has 8 divisors (see below), whose sum is σ = 71517936480. Its totient is φ = 71120715120.

The previous prime is 71319297871. The next prime is 71319297899. The reversal of 71319297893 is 39879291317.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71319297893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71319297899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4781978 + ... + 4796868.

It is an arithmetic number, because the mean of its divisors is an integer number (8939742060).

Almost surely, 2^71319297893 is an apocalyptic number.

It is an amenable number.

71319297893 is a deficient number, since it is larger than the sum of its proper divisors (198638587).

71319297893 is a wasteful number, since it uses less digits than its factorization.

71319297893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27907.

The product of its digits is 5143824, while the sum is 59.

The spelling of 71319297893 in words is "seventy-one billion, three hundred nineteen million, two hundred ninety-seven thousand, eight hundred ninety-three".