78850410134128 has 20 divisors (see below), whose sum is σ = 155362036918680. Its totient is φ = 38756981251904.

The previous prime is 78850410134117. The next prime is 78850410134129. The reversal of 78850410134128 is 82143101405887.

It is a super-4 number, since 4×78850410134128⁴ (a number of 57 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78850410134129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41763987475 + ... + 41763989362.

It is an arithmetic number, because the mean of its divisors is an integer number (7768101845934).

Almost surely, 2^{78850410134128} is an apocalyptic number.

It is an amenable number.

78850410134128 is a deficient number, since it is larger than the sum of its proper divisors (76511626784552).

78850410134128 is a wasteful number, since it uses less digits than its factorization.

78850410134128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83527976904 (or 83527976898 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 52.

The spelling of 78850410134128 in words is "seventy-eight trillion, eight hundred fifty billion, four hundred ten million, one hundred thirty-four thousand, one hundred twenty-eight".