7809219212 has 12 divisors (see below), whose sum is σ = 14470023960. Its totient is φ = 3674926656.

The previous prime is 7809219193. The next prime is 7809219239. The reversal of 7809219212 is 2129129087.

It is a self number, because there is not a number n which added to its sum of digits gives 7809219212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57420662 + ... + 57420797.

It is an arithmetic number, because the mean of its divisors is an integer number (1205835330).

Almost surely, 2^7809219212 is an apocalyptic number.

It is an amenable number.

7809219212 is a deficient number, since it is larger than the sum of its proper divisors (6660804748).

7809219212 is a wasteful number, since it uses less digits than its factorization.

7809219212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114841480 (or 114841478 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 7809219212 is about 88369.7867599555. The cubic root of 7809219212 is about 1983.9735200003.

The spelling of 7809219212 in words is "seven billion, eight hundred nine million, two hundred nineteen thousand, two hundred twelve".