7280126465 has 16 divisors (see below), whose sum is σ = 8784361872. Its totient is φ = 5792043264.

The previous prime is 7280126453. The next prime is 7280126479. The reversal of 7280126465 is 5646210827.

It can be written as a sum of positive squares in 8 ways, for example, as 1416242689 + 5863883776 = 37633^2 + 76576^2 .

It is a cyclic number.

It is not a de Polignac number, because 7280126465 - 2⁴ = 7280126449 is a prime.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 766727 + ... + 776163.

It is an arithmetic number, because the mean of its divisors is an integer number (549022617).

Almost surely, 2^7280126465 is an apocalyptic number.

It is an amenable number.

7280126465 is a deficient number, since it is larger than the sum of its proper divisors (1504235407).

7280126465 is a wasteful number, since it uses less digits than its factorization.

7280126465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10276.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 7280126465 is about 85323.6571239185. The cubic root of 7280126465 is about 1938.1154392568.

The spelling of 7280126465 in words is "seven billion, two hundred eighty million, one hundred twenty-six thousand, four hundred sixty-five".