71647620232 has 16 divisors (see below), whose sum is σ = 142241599260. Its totient is φ = 33716527104.

The previous prime is 71647620227. The next prime is 71647620251. The reversal of 71647620232 is 23202674617.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61974110916 + 9673509316 = 248946^2 + 98354^2 .

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 3 ways as a sum of consecutive naturals, for example, 263410233 + ... + 263410504.

Almost surely, 2^71647620232 is an apocalyptic number.

It is an amenable number.

71647620232 is a deficient number, since it is larger than the sum of its proper divisors (70593979028).

71647620232 is a wasteful number, since it uses less digits than its factorization.

71647620232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526820760 (or 526820756 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 40.

The spelling of 71647620232 in words is "seventy-one billion, six hundred forty-seven million, six hundred twenty thousand, two hundred thirty-two".