71184677047 has 4 divisors (see below), whose sum is σ = 77656011336. Its totient is φ = 64713342760.

The previous prime is 71184677033. The next prime is 71184677063. The reversal of 71184677047 is 74077648117.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74077648117 = 11 ⋅6734331647.

It is not a de Polignac number, because 71184677047 - 2¹¹ = 71184674999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71184676985 and 71184677003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71184677027) 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, 3235667128 + ... + 3235667149.

It is an arithmetic number, because the mean of its divisors is an integer number (19414002834).

Almost surely, 2^71184677047 is an apocalyptic number.

71184677047 is a deficient number, since it is larger than the sum of its proper divisors (6471334289).

71184677047 is a wasteful number, since it uses less digits than its factorization.

71184677047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6471334288.

The product of its (nonzero) digits is 1843968, while the sum is 52.

The spelling of 71184677047 in words is "seventy-one billion, one hundred eighty-four million, six hundred seventy-seven thousand, forty-seven".