71050875905 has 4 divisors (see below), whose sum is σ = 85261051092. Its totient is φ = 56840700720.

The previous prime is 71050875871. The next prime is 71050875911. The reversal of 71050875905 is 50957805017.

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 20634460609 + 50416415296 = 143647^2 + 224536^2 .

It is not a de Polignac number, because 71050875905 - 2¹⁴ = 71050859521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71050875905.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7105087586 + ... + 7105087595.

It is an arithmetic number, because the mean of its divisors is an integer number (21315262773).

Almost surely, 2^71050875905 is an apocalyptic number.

It is an amenable number.

71050875905 is a deficient number, since it is larger than the sum of its proper divisors (14210175187).

71050875905 is a wasteful number, since it uses less digits than its factorization.

71050875905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14210175186.

The product of its (nonzero) digits is 441000, while the sum is 47.

The spelling of 71050875905 in words is "seventy-one billion, fifty million, eight hundred seventy-five thousand, nine hundred five".