78177256710212 has 96 divisors (see below), whose sum is σ = 154527170273280. Its totient is φ = 34285018464000.

The previous prime is 78177256710193. The next prime is 78177256710247. The reversal of 78177256710212 is 21201765277187.

It is a super-3 number, since 3×78177256710212³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 2414576168 + ... + 2414608544.

It is an arithmetic number, because the mean of its divisors is an integer number (1609658023680).

Almost surely, 2^{78177256710212} is an apocalyptic number.

It is an amenable number.

78177256710212 is a deficient number, since it is larger than the sum of its proper divisors (76349913563068).

78177256710212 is a wasteful number, since it uses less digits than its factorization.

78177256710212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37713 (or 37711 counting only the distinct ones).

The product of its (nonzero) digits is 4609920, while the sum is 56.

The spelling of 78177256710212 in words is "seventy-eight trillion, one hundred seventy-seven billion, two hundred fifty-six million, seven hundred ten thousand, two hundred twelve".