440064538875 has 128 divisors (see below), whose sum is σ = 876777457920. Its totient is φ = 216508723200.

The previous prime is 440064538867. The next prime is 440064538889. The reversal of 440064538875 is 578835460044.

It is a happy number.

440064538875 is a `hidden beast` number, since 4 + 40 + 0 + 6 + 453 + 88 + 75 = 666.

It is not a de Polignac number, because 440064538875 - 2³ = 440064538867 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 119031027 + ... + 119034723.

It is an arithmetic number, because the mean of its divisors is an integer number (6849823890).

Almost surely, 2^440064538875 is an apocalyptic number.

440064538875 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

440064538875 is a deficient number, since it is larger than the sum of its proper divisors (436712919045).

440064538875 is a wasteful number, since it uses less digits than its factorization.

440064538875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6447 (or 6431 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 54.

The spelling of 440064538875 in words is "four hundred forty billion, sixty-four million, five hundred thirty-eight thousand, eight hundred seventy-five".