71206569151 has 4 divisors (see below), whose sum is σ = 71208075400. Its totient is φ = 71205062904.

The previous prime is 71206569139. The next prime is 71206569167. The reversal of 71206569151 is 15196560217.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71206569151 - 2³¹ = 69059085503 is a prime.

It is a super-2 number, since 2×71206569151² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71206569098 and 71206569107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71206569251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 679836 + ... + 777553.

It is an arithmetic number, because the mean of its divisors is an integer number (17802018850).

Almost surely, 2^71206569151 is an apocalyptic number.

71206569151 is a deficient number, since it is larger than the sum of its proper divisors (1506249).

71206569151 is a wasteful number, since it uses less digits than its factorization.

71206569151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506248.

The product of its (nonzero) digits is 113400, while the sum is 43.

The spelling of 71206569151 in words is "seventy-one billion, two hundred six million, five hundred sixty-nine thousand, one hundred fifty-one".