3988729953748 has 12 divisors (see below), whose sum is σ = 6983580925300. Its totient is φ = 1993421117952.

The previous prime is 3988729953739. The next prime is 3988729953749. The reversal of 3988729953748 is 8473599278893.

It can be written as a sum of positive squares in 2 ways, for example, as 367427520964 + 3621302432784 = 606158^2 + 1902972^2 .

It is a super-3 number, since 3×3988729953748³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3988729953749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235955223 + ... + 235972126.

Almost surely, 2^{3988729953748} is an apocalyptic number.

It is an amenable number.

3988729953748 is a deficient number, since it is larger than the sum of its proper divisors (2994850971552).

3988729953748 is a wasteful number, since it uses less digits than its factorization.

3988729953748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471929466 (or 471929464 counting only the distinct ones).

The product of its digits is 6584094720, while the sum is 82.

The spelling of 3988729953748 in words is "three trillion, nine hundred eighty-eight billion, seven hundred twenty-nine million, nine hundred fifty-three thousand, seven hundred forty-eight".