7227778012 has 24 divisors (see below), whose sum is σ = 15567522656. Its totient is φ = 2859340608.

The previous prime is 7227778009. The next prime is 7227778027. The reversal of 7227778012 is 2108777227.

It is a self number, because there is not a number n which added to its sum of digits gives 7227778012.

It is a congruent 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, 9927903 + ... + 9928630.

Almost surely, 2^7227778012 is an apocalyptic number.

It is an amenable number.

7227778012 is an abundant number, since it is smaller than the sum of its proper divisors (8339744644).

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

7227778012 is a wasteful number, since it uses less digits than its factorization.

7227778012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19856557 (or 19856555 counting only the distinct ones).

The product of its (nonzero) digits is 153664, while the sum is 43.

The square root of 7227778012 is about 85016.3396765586. The cubic root of 7227778012 is about 1933.4588580278.

The spelling of 7227778012 in words is "seven billion, two hundred twenty-seven million, seven hundred seventy-eight thousand, twelve".