71064950207 has 4 divisors (see below), whose sum is σ = 71475730440. Its totient is φ = 70654169976.

The previous prime is 71064950197. The next prime is 71064950221. The reversal of 71064950207 is 70205946017.

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

It is a cyclic number.

It is not a de Polignac number, because 71064950207 - 2¹² = 71064946111 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 (71064950227) 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, 205389857 + ... + 205390202.

It is an arithmetic number, because the mean of its divisors is an integer number (17868932610).

Almost surely, 2^71064950207 is an apocalyptic number.

71064950207 is a deficient number, since it is larger than the sum of its proper divisors (410780233).

71064950207 is a wasteful number, since it uses less digits than its factorization.

71064950207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410780232.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 71064950207 in words is "seventy-one billion, sixty-four million, nine hundred fifty thousand, two hundred seven".