78231066324 has 12 divisors (see below), whose sum is σ = 182539154784. Its totient is φ = 26077022104.

The previous prime is 78231066311. The next prime is 78231066359. The reversal of 78231066324 is 42366013287.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×78231066324² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3259627752 + ... + 3259627775.

It is an arithmetic number, because the mean of its divisors is an integer number (15211596232).

Almost surely, 2^78231066324 is an apocalyptic number.

It is an amenable number.

78231066324 is an abundant number, since it is smaller than the sum of its proper divisors (104308088460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78231066324 is a wasteful number, since it uses less digits than its factorization.

78231066324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6519255534 (or 6519255532 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 78231066324 in words is "seventy-eight billion, two hundred thirty-one million, sixty-six thousand, three hundred twenty-four".