78145548168184 has 128 divisors (see below), whose sum is σ = 170542812873600. Its totient is φ = 32877864714240.

The previous prime is 78145548168137. The next prime is 78145548168209. The reversal of 78145548168184 is 48186184554187.

78145548168184 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×78145548168184² (a number of 29 digits) contains 22 as substring.

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, 1166718504 + ... + 1166785480.

It is an arithmetic number, because the mean of its divisors is an integer number (1332365725575).

Almost surely, 2^{78145548168184} 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 78145548168184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85271406436800).

78145548168184 is an abundant number, since it is smaller than the sum of its proper divisors (92397264705416).

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

78145548168184 is a wasteful number, since it uses less digits than its factorization.

78145548168184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68393 (or 68389 counting only the distinct ones).

The product of its digits is 275251200, while the sum is 70.

The spelling of 78145548168184 in words is "seventy-eight trillion, one hundred forty-five billion, five hundred forty-eight million, one hundred sixty-eight thousand, one hundred eighty-four".