78795212140 has 12 divisors (see below), whose sum is σ = 165469945536. Its totient is φ = 31518084848.

The previous prime is 78795211931. The next prime is 78795212141. The reversal of 78795212140 is 4121259787.

It is not an unprimeable number, because it can be changed into a prime (78795212141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1969880284 + ... + 1969880323.

It is an arithmetic number, because the mean of its divisors is an integer number (13789162128).

Almost surely, 2^78795212140 is an apocalyptic number.

It is an amenable number.

78795212140 is an abundant number, since it is smaller than the sum of its proper divisors (86674733396).

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

78795212140 is a wasteful number, since it uses less digits than its factorization.

78795212140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3939760616 (or 3939760614 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 46.

The spelling of 78795212140 in words is "seventy-eight billion, seven hundred ninety-five million, two hundred twelve thousand, one hundred forty".