78530847222256 has 160 divisors (see below), whose sum is σ = 185692710905856. Its totient is φ = 31693579008000.

The previous prime is 78530847222241. The next prime is 78530847222329. The reversal of 78530847222256 is 65222274803587.

It is a super-2 number, since 2×78530847222256² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78530847222194 and 78530847222203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 764985 + ... + 12555751.

Almost surely, 2^{78530847222256} 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 78530847222256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92846355452928).

78530847222256 is an abundant number, since it is smaller than the sum of its proper divisors (107161863683600).

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

78530847222256 is a wasteful number, since it uses less digits than its factorization.

78530847222256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11790911 (or 11790905 counting only the distinct ones).

The product of its (nonzero) digits is 90316800, while the sum is 61.

The spelling of 78530847222256 in words is "seventy-eight trillion, five hundred thirty billion, eight hundred forty-seven million, two hundred twenty-two thousand, two hundred fifty-six".