71145112975 has 12 divisors (see below), whose sum is σ = 88224231760. Its totient is φ = 56913321600.

The previous prime is 71145112949. The next prime is 71145112979. The reversal of 71145112975 is 57921154117.

It is not a de Polignac number, because 71145112975 - 2¹⁷ = 71144981903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71145112979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 571111 + ... + 684439.

Almost surely, 2^71145112975 is an apocalyptic number.

71145112975 is a deficient number, since it is larger than the sum of its proper divisors (17079118785).

71145112975 is a wasteful number, since it uses less digits than its factorization.

71145112975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138450 (or 138445 counting only the distinct ones).

The product of its digits is 88200, while the sum is 43.

The spelling of 71145112975 in words is "seventy-one billion, one hundred forty-five million, one hundred twelve thousand, nine hundred seventy-five".