7408665812 has 12 divisors (see below), whose sum is σ = 13051028256. Its totient is φ = 3679800600.

The previous prime is 7408665793. The next prime is 7408665917. The reversal of 7408665812 is 2185668047.

It is a super-2 number, since 2×7408665812² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6132398 + ... + 6133605.

It is an arithmetic number, because the mean of its divisors is an integer number (1087585688).

Almost surely, 2^7408665812 is an apocalyptic number.

It is an amenable number.

7408665812 is a deficient number, since it is larger than the sum of its proper divisors (5642362444).

7408665812 is a wasteful number, since it uses less digits than its factorization.

7408665812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12266158 (or 12266156 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 7408665812 is about 86073.6069419657. The cubic root of 7408665812 is about 1949.4555404786.

The spelling of 7408665812 in words is "seven billion, four hundred eight million, six hundred sixty-five thousand, eight hundred twelve".