78785242075212 has 24 divisors (see below), whose sum is σ = 184353002712816. Its totient is φ = 26187351472128.

The previous prime is 78785242075117. The next prime is 78785242075229. The reversal of 78785242075212 is 21257024258787.

It is a super-2 number, since 2×78785242075212² (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 (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9299481373 + ... + 9299489844.

It is an arithmetic number, because the mean of its divisors is an integer number (7681375113034).

Almost surely, 2^{78785242075212} is an apocalyptic number.

It is an amenable number.

78785242075212 is an abundant number, since it is smaller than the sum of its proper divisors (105567760637604).

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

78785242075212 is a wasteful number, since it uses less digits than its factorization.

78785242075212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18598971577 (or 18598971575 counting only the distinct ones).

The product of its (nonzero) digits is 35123200, while the sum is 60.

The spelling of 78785242075212 in words is "seventy-eight trillion, seven hundred eighty-five billion, two hundred forty-two million, seventy-five thousand, two hundred twelve".