7280107812 has 54 divisors (see below), whose sum is σ = 19490645538. Its totient is φ = 2283293184.

The previous prime is 7280107739. The next prime is 7280107831. The reversal of 7280107812 is 2187010827.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 215032896 + 7065074916 = 14664^2 + 84054^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2109064 + ... + 2112512.

Almost surely, 2^7280107812 is an apocalyptic number.

It is an amenable number.

7280107812 is an abundant number, since it is smaller than the sum of its proper divisors (12210537726).

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

7280107812 is a wasteful number, since it uses less digits than its factorization.

7280107812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6925 (or 3471 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 36.

The square root of 7280107812 is about 85323.5478165319. The cubic root of 7280107812 is about 1938.1137839880.

The spelling of 7280107812 in words is "seven billion, two hundred eighty million, one hundred seven thousand, eight hundred twelve".