7445728212 has 24 divisors (see below), whose sum is σ = 18709778976. Its totient is φ = 2290993248.

The previous prime is 7445728183. The next prime is 7445728223. The reversal of 7445728212 is 2128275447.

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, 23864358 + ... + 23864669.

It is an arithmetic number, because the mean of its divisors is an integer number (779574124).

Almost surely, 2^7445728212 is an apocalyptic number.

It is an amenable number.

7445728212 is an abundant number, since it is smaller than the sum of its proper divisors (11264050764).

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

7445728212 is a wasteful number, since it uses less digits than its factorization.

7445728212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47729047 (or 47729045 counting only the distinct ones).

The product of its digits is 250880, while the sum is 42.

The square root of 7445728212 is about 86288.6331564013. The cubic root of 7445728212 is about 1952.7009000535.

The spelling of 7445728212 in words is "seven billion, four hundred forty-five million, seven hundred twenty-eight thousand, two hundred twelve".