71384048473 has 4 divisors (see below), whose sum is σ = 73125122868. Its totient is φ = 69642974080.

The previous prime is 71384048429. The next prime is 71384048479. The reversal of 71384048473 is 37484048317.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1673791744 + 69710256729 = 40912^2 + 264027^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71384048473 is a prime.

It is a super-2 number, since 2×71384048473² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71384048479) 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 3 ways as a sum of consecutive naturals, for example, 870537136 + ... + 870537217.

It is an arithmetic number, because the mean of its divisors is an integer number (18281280717).

Almost surely, 2^71384048473 is an apocalyptic number.

It is an amenable number.

71384048473 is a deficient number, since it is larger than the sum of its proper divisors (1741074395).

71384048473 is a wasteful number, since it uses less digits than its factorization.

71384048473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741074394.

The product of its (nonzero) digits is 1806336, while the sum is 49.

The spelling of 71384048473 in words is "seventy-one billion, three hundred eighty-four million, forty-eight thousand, four hundred seventy-three".