71864328579 has 8 divisors (see below), whose sum is σ = 95872672080. Its totient is φ = 47882768736.

The previous prime is 71864328461. The next prime is 71864328583. The reversal of 71864328579 is 97582346817.

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

It is not a de Polignac number, because 71864328579 - 2¹⁶ = 71864263043 is a prime.

It is a super-2 number, since 2×71864328579² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71864328379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6689652 + ... + 6700385.

It is an arithmetic number, because the mean of its divisors is an integer number (11984084010).

Almost surely, 2^71864328579 is an apocalyptic number.

71864328579 is a deficient number, since it is larger than the sum of its proper divisors (24008343501).

71864328579 is a wasteful number, since it uses less digits than its factorization.

71864328579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13391829.

The product of its digits is 20321280, while the sum is 60.

The spelling of 71864328579 in words is "seventy-one billion, eight hundred sixty-four million, three hundred twenty-eight thousand, five hundred seventy-nine".