71775056527 has 4 divisors (see below), whose sum is σ = 72471901840. Its totient is φ = 71078211216.

The previous prime is 71775056489. The next prime is 71775056539. The reversal of 71775056527 is 72565057717.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72565057717 = 5449 ⋅13317133.

It is a cyclic number.

It is not a de Polignac number, because 71775056527 - 2¹⁹ = 71774532239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71775056627) 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, 348422502 + ... + 348422707.

It is an arithmetic number, because the mean of its divisors is an integer number (18117975460).

Almost surely, 2^71775056527 is an apocalyptic number.

71775056527 is a deficient number, since it is larger than the sum of its proper divisors (696845313).

71775056527 is a wasteful number, since it uses less digits than its factorization.

71775056527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696845312.

The product of its (nonzero) digits is 3601500, while the sum is 52.

The spelling of 71775056527 in words is "seventy-one billion, seven hundred seventy-five million, fifty-six thousand, five hundred twenty-seven".