78947627836 has 96 divisors (see below), whose sum is σ = 182481513984. Its totient is φ = 28933632000.

The previous prime is 78947627771. The next prime is 78947627839. The reversal of 78947627836 is 63872674987.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78947627839) 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 31 ways as a sum of consecutive naturals, for example, 14296756 + ... + 14302276.

It is an arithmetic number, because the mean of its divisors is an integer number (1900849104).

Almost surely, 2^78947627836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78947627836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91240756992).

78947627836 is an abundant number, since it is smaller than the sum of its proper divisors (103533886148).

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

78947627836 is a wasteful number, since it uses less digits than its factorization.

78947627836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8291 (or 8289 counting only the distinct ones).

The product of its digits is 170698752, while the sum is 67.

The spelling of 78947627836 in words is "seventy-eight billion, nine hundred forty-seven million, six hundred twenty-seven thousand, eight hundred thirty-six".