71789339329 has 4 divisors (see below), whose sum is σ = 74910614976. Its totient is φ = 68668063684.

The previous prime is 71789339299. The next prime is 71789339341. The reversal of 71789339329 is 92393398717.

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, and also an emirpimes, since its reverse is a distinct semiprime: 92393398717 = 67 ⋅1379005951.

It is a cyclic number.

It is not a de Polignac number, because 71789339329 - 2¹³ = 71789331137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71789339129) 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, 1560637789 + ... + 1560637834.

It is an arithmetic number, because the mean of its divisors is an integer number (18727653744).

Almost surely, 2^71789339329 is an apocalyptic number.

It is an amenable number.

71789339329 is a deficient number, since it is larger than the sum of its proper divisors (3121275647).

71789339329 is a wasteful number, since it uses less digits than its factorization.

71789339329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3121275646.

The product of its digits is 15431472, while the sum is 61.

The spelling of 71789339329 in words is "seventy-one billion, seven hundred eighty-nine million, three hundred thirty-nine thousand, three hundred twenty-nine".