71409845879 has 8 divisors (see below), whose sum is σ = 75204421680. Its totient is φ = 67618886400.

The previous prime is 71409845863. The next prime is 71409845921. The reversal of 71409845879 is 97854890417.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71409845879 - 2⁴ = 71409845863 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 (71409845279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 863492 + ... + 942569.

It is an arithmetic number, because the mean of its divisors is an integer number (9400552710).

Almost surely, 2^71409845879 is an apocalyptic number.

71409845879 is a deficient number, since it is larger than the sum of its proper divisors (3794575801).

71409845879 is a wasteful number, since it uses less digits than its factorization.

71409845879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808161.

The product of its (nonzero) digits is 20321280, while the sum is 62.

The spelling of 71409845879 in words is "seventy-one billion, four hundred nine million, eight hundred forty-five thousand, eight hundred seventy-nine".