71564242354 has 16 divisors (see below), whose sum is σ = 122196651840. Its totient is φ = 31114887760.

The previous prime is 71564242313. The next prime is 71564242367. The reversal of 71564242354 is 45324246517.

It is a super-3 number, since 3×71564242354³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 71564242354.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70715149 + ... + 70716160.

It is an arithmetic number, because the mean of its divisors is an integer number (7637290740).

Almost surely, 2^71564242354 is an apocalyptic number.

71564242354 is a deficient number, since it is larger than the sum of its proper divisors (50632409486).

71564242354 is a wasteful number, since it uses less digits than its factorization.

71564242354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141431345.

The product of its digits is 806400, while the sum is 43.

The spelling of 71564242354 in words is "seventy-one billion, five hundred sixty-four million, two hundred forty-two thousand, three hundred fifty-four".