7275665444 has 24 divisors (see below), whose sum is σ = 12957113400. Its totient is φ = 3573780480.

The previous prime is 7275665443. The next prime is 7275665473. The reversal of 7275665444 is 4445665727.

It can be written as a sum of positive squares in 4 ways, for example, as 1047299044 + 6228366400 = 32362^2 + 78920^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7275665392 and 7275665401.

It is not an unprimeable number, because it can be changed into a prime (7275665443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184292 + ... + 220260.

It is an arithmetic number, because the mean of its divisors is an integer number (539879725).

Almost surely, 2^7275665444 is an apocalyptic number.

It is an amenable number.

7275665444 is a deficient number, since it is larger than the sum of its proper divisors (5681447956).

7275665444 is a wasteful number, since it uses less digits than its factorization.

7275665444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36863 (or 36861 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 50.

The square root of 7275665444 is about 85297.5113587729. The cubic root of 7275665444 is about 1937.7194873317.

The spelling of 7275665444 in words is "seven billion, two hundred seventy-five million, six hundred sixty-five thousand, four hundred forty-four".