3988511999 has 8 divisors (see below), whose sum is σ = 4082643840. Its totient is φ = 3894442776.

The previous prime is 3988511957. The next prime is 3988512019. The reversal of 3988511999 is 9991158893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3988511999 - 2⁸ = 3988511743 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 (3988511929) 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, 128744 + ... + 156690.

It is an arithmetic number, because the mean of its divisors is an integer number (510330480).

Almost surely, 2^3988511999 is an apocalyptic number.

3988511999 is a deficient number, since it is larger than the sum of its proper divisors (94131841).

3988511999 is a wasteful number, since it uses less digits than its factorization.

3988511999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31309.

The product of its digits is 6298560, while the sum is 62.

The square root of 3988511999 is about 63154.6672780405. The cubic root of 3988511999 is about 1585.8799227369.

The spelling of 3988511999 in words is "three billion, nine hundred eighty-eight million, five hundred eleven thousand, nine hundred ninety-nine".