7280513212 has 12 divisors (see below), whose sum is σ = 14561026480. Its totient is φ = 3120219936.

The previous prime is 7280513209. The next prime is 7280513221. The reversal of 7280513212 is 2123150827.

7280513212 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130009137 + ... + 130009192.

Almost surely, 2^7280513212 is an apocalyptic number.

It is an amenable number.

7280513212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7280513212 is a wasteful number, since it uses less digits than its factorization.

7280513212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260018340 (or 260018338 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 7280513212 is about 85325.9234465118. The cubic root of 7280513212 is about 1938.1497585809.

The spelling of 7280513212 in words is "seven billion, two hundred eighty million, five hundred thirteen thousand, two hundred twelve".