71289071407 has 4 divisors (see below), whose sum is σ = 72634148280. Its totient is φ = 69943994536.

The previous prime is 71289071341. The next prime is 71289071461. The reversal of 71289071407 is 70417098217.

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 71289071407 - 2³⁵ = 36929333039 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 (71289071807) 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, 672538357 + ... + 672538462.

It is an arithmetic number, because the mean of its divisors is an integer number (18158537070).

Almost surely, 2^71289071407 is an apocalyptic number.

71289071407 is a deficient number, since it is larger than the sum of its proper divisors (1345076873).

71289071407 is a wasteful number, since it uses less digits than its factorization.

71289071407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345076872.

The product of its (nonzero) digits is 197568, while the sum is 46.

The spelling of 71289071407 in words is "seventy-one billion, two hundred eighty-nine million, seventy-one thousand, four hundred seven".