4409278625 has 16 divisors (see below), whose sum is σ = 5530743504. Its totient is φ = 3509497600.

The previous prime is 4409278619. The next prime is 4409278649. The reversal of 4409278625 is 5268729044.

It can be written as a sum of positive squares in 8 ways, for example, as 831803281 + 3577475344 = 28841^2 + 59812^2 .

It is not a de Polignac number, because 4409278625 - 2²⁴ = 4392501409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4409278625.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64904 + ... + 114153.

It is an arithmetic number, because the mean of its divisors is an integer number (345671469).

Almost surely, 2^4409278625 is an apocalyptic number.

It is an amenable number.

4409278625 is a deficient number, since it is larger than the sum of its proper divisors (1121464879).

4409278625 is a wasteful number, since it uses less digits than its factorization.

4409278625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179269 (or 179259 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The square root of 4409278625 is about 66402.3992412925. The cubic root of 4409278625 is about 1639.7935771572.

The spelling of 4409278625 in words is "four billion, four hundred nine million, two hundred seventy-eight thousand, six hundred twenty-five".