78322672671 has 8 divisors (see below), whose sum is σ = 104431554864. Its totient is φ = 52214452800.

The previous prime is 78322672669. The next prime is 78322672733. The reversal of 78322672671 is 17627622387.

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

It is not a de Polignac number, because 78322672671 - 2¹ = 78322672669 is a prime.

It is a super-2 number, since 2×78322672671² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78322672471) 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, 287325 + ... + 489081.

It is an arithmetic number, because the mean of its divisors is an integer number (13053944358).

Almost surely, 2^78322672671 is an apocalyptic number.

78322672671 is a deficient number, since it is larger than the sum of its proper divisors (26108882193).

78322672671 is a wasteful number, since it uses less digits than its factorization.

78322672671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331161.

The product of its digits is 2370816, while the sum is 51.

The spelling of 78322672671 in words is "seventy-eight billion, three hundred twenty-two million, six hundred seventy-two thousand, six hundred seventy-one".