78845904658176 has 144 divisors (see below), whose sum is σ = 216649535413248. Its totient is φ = 25430023987200.

The previous prime is 78845904658139. The next prime is 78845904658229. The reversal of 78845904658176 is 67185640954887.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147747991 + ... + 148280681.

It is an arithmetic number, because the mean of its divisors is an integer number (1504510662592).

Almost surely, 2^{78845904658176} 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 78845904658176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108324767706624).

78845904658176 is an abundant number, since it is smaller than the sum of its proper divisors (137803630755072).

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

78845904658176 is a wasteful number, since it uses less digits than its factorization.

78845904658176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538958 (or 538944 counting only the distinct ones).

The product of its (nonzero) digits is 3251404800, while the sum is 78.

The spelling of 78845904658176 in words is "seventy-eight trillion, eight hundred forty-five billion, nine hundred four million, six hundred fifty-eight thousand, one hundred seventy-six".