3975988799 has 4 divisors (see below), whose sum is σ = 4014590736. Its totient is φ = 3937386864.

The previous prime is 3975988789. The next prime is 3975988801. The reversal of 3975988799 is 9978895793.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3975988799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3975988789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19300814 + ... + 19301019.

It is an arithmetic number, because the mean of its divisors is an integer number (1003647684).

Almost surely, 2^3975988799 is an apocalyptic number.

3975988799 is a deficient number, since it is larger than the sum of its proper divisors (38601937).

3975988799 is a wasteful number, since it uses less digits than its factorization.

3975988799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38601936.

The product of its digits is 308629440, while the sum is 74.

The square root of 3975988799 is about 63055.4422631386. The cubic root of 3975988799 is about 1584.2183913451.

The spelling of 3975988799 in words is "three billion, nine hundred seventy-five million, nine hundred eighty-eight thousand, seven hundred ninety-nine".