71839098839 has 2 divisors, whose sum is σ = 71839098840. Its totient is φ = 71839098838.

The previous prime is 71839098833. The next prime is 71839098841. The reversal of 71839098839 is 93889093817.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71839098839 - 2⁴ = 71839098823 is a prime.

It is a super-2 number, since 2×71839098839² (a number of 23 digits) contains 22 as substring.

Together with 71839098841, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71839098833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35919549419 + 35919549420.

It is an arithmetic number, because the mean of its divisors is an integer number (35919549420).

Almost surely, 2^71839098839 is an apocalyptic number.

71839098839 is a deficient number, since it is larger than the sum of its proper divisors (1).

71839098839 is an equidigital number, since it uses as much as digits as its factorization.

71839098839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23514624, while the sum is 65.

The spelling of 71839098839 in words is "seventy-one billion, eight hundred thirty-nine million, ninety-eight thousand, eight hundred thirty-nine".