7806378212 has 24 divisors (see below), whose sum is σ = 14105414400. Its totient is φ = 3776323680.

The previous prime is 7806378187. The next prime is 7806378287. The reversal of 7806378212 is 2128736087.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 893039 + ... + 901737.

It is an arithmetic number, because the mean of its divisors is an integer number (587725600).

Almost surely, 2^7806378212 is an apocalyptic number.

It is an amenable number.

7806378212 is a deficient number, since it is larger than the sum of its proper divisors (6299036188).

7806378212 is a wasteful number, since it uses less digits than its factorization.

7806378212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15971 (or 15969 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 7806378212 is about 88353.7107992641. The cubic root of 7806378212 is about 1983.7329004508.

The spelling of 7806378212 in words is "seven billion, eight hundred six million, three hundred seventy-eight thousand, two hundred twelve".