78327010680 has 64 divisors (see below), whose sum is σ = 235459785600. Its totient is φ = 20844647040.

The previous prime is 78327010679. The next prime is 78327010681. The reversal of 78327010680 is 8601072387.

It is an interprime number because it is at equal distance from previous prime (78327010679) and next prime (78327010681).

It is a super-2 number, since 2×78327010680² (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 (78327010681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 605770 + ... + 723609.

It is an arithmetic number, because the mean of its divisors is an integer number (3679059150).

Almost surely, 2^78327010680 is an apocalyptic number.

It is an amenable number.

78327010680 is an abundant number, since it is smaller than the sum of its proper divisors (157132774920).

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

78327010680 is a wasteful number, since it uses less digits than its factorization.

78327010680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329884 (or 1329880 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 78327010680 in words is "seventy-eight billion, three hundred twenty-seven million, ten thousand, six hundred eighty".