71749544068 has 12 divisors (see below), whose sum is σ = 128233228032. Its totient is φ = 35111478920.

The previous prime is 71749544063. The next prime is 71749544129. The reversal of 71749544068 is 86044594717.

It is not an unprimeable number, because it can be changed into a prime (71749544063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190823068 + ... + 190823443.

It is an arithmetic number, because the mean of its divisors is an integer number (10686102336).

Almost surely, 2^71749544068 is an apocalyptic number.

It is an amenable number.

71749544068 is a deficient number, since it is larger than the sum of its proper divisors (56483683964).

71749544068 is a wasteful number, since it uses less digits than its factorization.

71749544068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381646562 (or 381646560 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 71749544068 in words is "seventy-one billion, seven hundred forty-nine million, five hundred forty-four thousand, sixty-eight".