71275077407 has 4 divisors (see below), whose sum is σ = 74373993840. Its totient is φ = 68176160976.

The previous prime is 71275077403. The next prime is 71275077427. The reversal of 71275077407 is 70477057217.

It is a happy number.

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

It is not a de Polignac number, because 71275077407 - 2² = 71275077403 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 (71275077403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1549458182 + ... + 1549458227.

It is an arithmetic number, because the mean of its divisors is an integer number (18593498460).

Almost surely, 2^71275077407 is an apocalyptic number.

71275077407 is a deficient number, since it is larger than the sum of its proper divisors (3098916433).

71275077407 is a wasteful number, since it uses less digits than its factorization.

71275077407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098916432.

The product of its (nonzero) digits is 672280, while the sum is 47.

The spelling of 71275077407 in words is "seventy-one billion, two hundred seventy-five million, seventy-seven thousand, four hundred seven".