71479505271 has 16 divisors (see below), whose sum is σ = 99509923584. Its totient is φ = 45553552704.

The previous prime is 71479505267. The next prime is 71479505281. The reversal of 71479505271 is 17250597417.

It is not a de Polignac number, because 71479505271 - 2² = 71479505267 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71479505271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71479505281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198261 + ... + 426926.

It is an arithmetic number, because the mean of its divisors is an integer number (6219370224).

Almost surely, 2^71479505271 is an apocalyptic number.

71479505271 is a deficient number, since it is larger than the sum of its proper divisors (28030418313).

71479505271 is a wasteful number, since it uses less digits than its factorization.

71479505271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626870.

The product of its (nonzero) digits is 617400, while the sum is 48.

The spelling of 71479505271 in words is "seventy-one billion, four hundred seventy-nine million, five hundred five thousand, two hundred seventy-one".