71612205464 has 96 divisors (see below), whose sum is σ = 142289194320. Its totient is φ = 33774624000.

The previous prime is 71612205463. The next prime is 71612205559. The reversal of 71612205464 is 46450221617.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71612205463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73750499 + ... + 73751469.

Almost surely, 2^71612205464 is an apocalyptic number.

It is an amenable number.

71612205464 is a deficient number, since it is larger than the sum of its proper divisors (70676988856).

71612205464 is a wasteful number, since it uses less digits than its factorization.

71612205464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273 (or 1238 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 71612205464 in words is "seventy-one billion, six hundred twelve million, two hundred five thousand, four hundred sixty-four".