71473551841 has 8 divisors (see below), whose sum is σ = 71829561384. Its totient is φ = 71118305280.

The previous prime is 71473551827. The next prime is 71473551869. The reversal of 71473551841 is 14815537417.

It can be written as a sum of positive squares in 4 ways, for example, as 33994140625 + 37479411216 = 184375^2 + 193596^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71473551841 - 2⁷ = 71473551713 is a prime.

It is a super-2 number, since 2×71473551841² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71473551791 and 71473551800.

It is not an unprimeable number, because it can be changed into a prime (71473551811) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2466 + ... + 378091.

It is an arithmetic number, because the mean of its divisors is an integer number (8978695173).

Almost surely, 2^71473551841 is an apocalyptic number.

It is an amenable number.

71473551841 is a deficient number, since it is larger than the sum of its proper divisors (356009543).

71473551841 is a wasteful number, since it uses less digits than its factorization.

71473551841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381491.

The product of its digits is 470400, while the sum is 46.

The spelling of 71473551841 in words is "seventy-one billion, four hundred seventy-three million, five hundred fifty-one thousand, eight hundred forty-one".