71642371330 has 16 divisors (see below), whose sum is σ = 134563063104. Its totient is φ = 27410994160.

The previous prime is 71642371319. The next prime is 71642371369. The reversal of 71642371330 is 3317324617.

It is a self number, because there is not a number n which added to its sum of digits gives 71642371330.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 155744056 + ... + 155744515.

It is an arithmetic number, because the mean of its divisors is an integer number (8410191444).

Almost surely, 2^71642371330 is an apocalyptic number.

71642371330 is a deficient number, since it is larger than the sum of its proper divisors (62920691774).

71642371330 is a wasteful number, since it uses less digits than its factorization.

71642371330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311488601.

The product of its (nonzero) digits is 63504, while the sum is 37.

Adding to 71642371330 its reverse (3317324617), we get a palindrome (74959695947).

The spelling of 71642371330 in words is "seventy-one billion, six hundred forty-two million, three hundred seventy-one thousand, three hundred thirty".