4000009975 has 24 divisors (see below), whose sum is σ = 5345352320. Its totient is φ = 2951752320.

The previous prime is 4000009973. The next prime is 4000010009. The reversal of 4000009975 is 5799000004.

4000009975 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4000009975 - 2¹ = 4000009973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4000009975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000009973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 568177 + ... + 575173.

Almost surely, 2^4000009975 is an apocalyptic number.

4000009975 is a deficient number, since it is larger than the sum of its proper divisors (1345342345).

4000009975 is a wasteful number, since it uses less digits than its factorization.

4000009975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8779 (or 8774 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 4000009975 is about 63245.6320626176. The cubic root of 4000009975 is about 1587.4023714942.

Adding to 4000009975 its reverse (5799000004), we get a palindrome (9799009979).

The spelling of 4000009975 in words is "four billion, nine thousand, nine hundred seventy-five".