71861114329 has 4 divisors (see below), whose sum is σ = 71946766080. Its totient is φ = 71775462580.

The previous prime is 71861114327. The next prime is 71861114333. The reversal of 71861114329 is 92341116817.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71861114329 - 2¹ = 71861114327 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71861114327) 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, 42824617 + ... + 42826294.

It is an arithmetic number, because the mean of its divisors is an integer number (17986691520).

Almost surely, 2^71861114329 is an apocalyptic number.

It is an amenable number.

71861114329 is a deficient number, since it is larger than the sum of its proper divisors (85651751).

71861114329 is an equidigital number, since it uses as much as digits as its factorization.

71861114329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85651750.

The product of its digits is 72576, while the sum is 43.

The spelling of 71861114329 in words is "seventy-one billion, eight hundred sixty-one million, one hundred fourteen thousand, three hundred twenty-nine".