71071351045 has 16 divisors (see below), whose sum is σ = 86491964160. Its totient is φ = 56054965824.

The previous prime is 71071351033. The next prime is 71071351069. The reversal of 71071351045 is 54015317017.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71071351045 is a prime.

It is a super-2 number, since 2×71071351045² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71071351045.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138067 + ... + 401503.

It is an arithmetic number, because the mean of its divisors is an integer number (5405747760).

Almost surely, 2^71071351045 is an apocalyptic number.

It is an amenable number.

71071351045 is a deficient number, since it is larger than the sum of its proper divisors (15420613115).

71071351045 is a wasteful number, since it uses less digits than its factorization.

71071351045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264204.

The product of its (nonzero) digits is 14700, while the sum is 34.

The spelling of 71071351045 in words is "seventy-one billion, seventy-one million, three hundred fifty-one thousand, forty-five".