78410694678144 has 32 divisors (see below), whose sum is σ = 208278407739840. Its totient is φ = 26136898225920.

The previous prime is 78410694678109. The next prime is 78410694678167. The reversal of 78410694678144 is 44187649601487.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×78410694678144² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102097258312 + ... + 102097259079.

It is an arithmetic number, because the mean of its divisors is an integer number (6508700241870).

Almost surely, 2^{78410694678144} is an apocalyptic number.

It is an amenable number.

78410694678144 is an abundant number, since it is smaller than the sum of its proper divisors (129867713061696).

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

78410694678144 is a wasteful number, since it uses less digits than its factorization.

78410694678144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204194517408 (or 204194517396 counting only the distinct ones).

The product of its (nonzero) digits is 260112384, while the sum is 69.

The spelling of 78410694678144 in words is "seventy-eight trillion, four hundred ten billion, six hundred ninety-four million, six hundred seventy-eight thousand, one hundred forty-four".