71345475898739 has 16 divisors (see below), whose sum is σ = 81693466272000. Its totient is φ = 61036503257184.

The previous prime is 71345475898673. The next prime is 71345475898751. The reversal of 71345475898739 is 93789857454317.

It is a de Polignac number, because none of the positive numbers 2^k-71345475898739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71345475898789) 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, 8724764 + ... + 14792310.

It is an arithmetic number, because the mean of its divisors is an integer number (5105841642000).

Almost surely, 2^{71345475898739} is an apocalyptic number.

71345475898739 is a deficient number, since it is larger than the sum of its proper divisors (10347990373261).

71345475898739 is a wasteful number, since it uses less digits than its factorization.

71345475898739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6070762.

The product of its digits is 6401203200, while the sum is 80.

The spelling of 71345475898739 in words is "seventy-one trillion, three hundred forty-five billion, four hundred seventy-five million, eight hundred ninety-eight thousand, seven hundred thirty-nine".