71473068738 has 16 divisors (see below), whose sum is σ = 158829041760. Its totient is φ = 23824356228.

The previous prime is 71473068713. The next prime is 71473068829. The reversal of 71473068738 is 83786037417.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 1323575347 = 71473068738 / (7 + 1 + 4 + 7 + 3 + 0 + 6 + 8 + 7 + 3 + 8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661787620 + ... + 661787727.

It is an arithmetic number, because the mean of its divisors is an integer number (9926815110).

Almost surely, 2^71473068738 is an apocalyptic number.

71473068738 is an abundant number, since it is smaller than the sum of its proper divisors (87355973022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71473068738 is a wasteful number, since it uses less digits than its factorization.

71473068738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323575358 (or 1323575352 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 71473068738 in words is "seventy-one billion, four hundred seventy-three million, sixty-eight thousand, seven hundred thirty-eight".