78571880212 has 48 divisors (see below), whose sum is σ = 157626862848. Its totient is φ = 33570282240.

The previous prime is 78571880203. The next prime is 78571880213. The reversal of 78571880212 is 21208817587.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78571880213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20561262 + ... + 20565082.

It is an arithmetic number, because the mean of its divisors is an integer number (3283892976).

Almost surely, 2^78571880212 is an apocalyptic number.

It is an amenable number.

78571880212 is an abundant number, since it is smaller than the sum of its proper divisors (79054982636).

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

78571880212 is a wasteful number, since it uses less digits than its factorization.

78571880212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5896 (or 5894 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 49.

The spelling of 78571880212 in words is "seventy-eight billion, five hundred seventy-one million, eight hundred eighty thousand, two hundred twelve".