7447812072 has 16 divisors (see below), whose sum is σ = 18619530240. Its totient is φ = 2482604016.

The previous prime is 7447812067. The next prime is 7447812143. The reversal of 7447812072 is 2702187447.

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, 155162728 + ... + 155162775.

It is an arithmetic number, because the mean of its divisors is an integer number (1163720640).

Almost surely, 2^7447812072 is an apocalyptic number.

It is an amenable number.

7447812072 is an abundant number, since it is smaller than the sum of its proper divisors (11171718168).

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

7447812072 is a wasteful number, since it uses less digits than its factorization.

7447812072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310325512 (or 310325508 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 42.

The square root of 7447812072 is about 86300.7072508679. The cubic root of 7447812072 is about 1952.8830526303.

The spelling of 7447812072 in words is "seven billion, four hundred forty-seven million, eight hundred twelve thousand, seventy-two".