71070564573 has 6 divisors (see below), whose sum is σ = 102657482174. Its totient is φ = 47380376376.

The previous prime is 71070564563. The next prime is 71070564583. The reversal of 71070564573 is 37546507017.

71070564573 is a `hidden beast` number, since 7 + 1 + 0 + 70 + 5 + 6 + 4 + 573 = 666.

It is an interprime number because it is at equal distance from previous prime (71070564563) and next prime (71070564583).

It can be written as a sum of positive squares in only one way, i.e., 52081173369 + 18989391204 = 228213^2 + 137802^2 .

It is a de Polignac number, because none of the positive numbers 2^k-71070564573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71070564503) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3948364690 + ... + 3948364707.

Almost surely, 2^71070564573 is an apocalyptic number.

It is an amenable number.

71070564573 is a deficient number, since it is larger than the sum of its proper divisors (31586917601).

71070564573 is a wasteful number, since it uses less digits than its factorization.

71070564573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7896729403 (or 7896729400 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 45.

The spelling of 71070564573 in words is "seventy-one billion, seventy million, five hundred sixty-four thousand, five hundred seventy-three".