71631017132 has 24 divisors (see below), whose sum is σ = 132895217280. Its totient is φ = 33723406080.

The previous prime is 71631017123. The next prime is 71631017137. The reversal of 71631017132 is 23171013617.

It is not an unprimeable number, because it can be changed into a prime (71631017137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7801757 + ... + 7810932.

It is an arithmetic number, because the mean of its divisors is an integer number (5537300720).

Almost surely, 2^71631017132 is an apocalyptic number.

It is an amenable number.

71631017132 is a deficient number, since it is larger than the sum of its proper divisors (61264200148).

71631017132 is a wasteful number, since it uses less digits than its factorization.

71631017132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15612761 (or 15612759 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 32.

The spelling of 71631017132 in words is "seventy-one billion, six hundred thirty-one million, seventeen thousand, one hundred thirty-two".