3988303308725 has 12 divisors (see below), whose sum is σ = 5038807351716. Its totient is φ = 3130441841280.

The previous prime is 3988303308673. The next prime is 3988303308749. The reversal of 3988303308725 is 5278033038893.

It can be written as a sum of positive squares in 6 ways, for example, as 73025874289 + 3915277434436 = 270233^2 + 1978706^2 .

It is not a de Polignac number, because 3988303308725 - 2¹⁴ = 3988303292341 is a prime.

It is a super-2 number, since 2×3988303308725² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1505018792 + ... + 1505021441.

It is an arithmetic number, because the mean of its divisors is an integer number (419900612643).

Almost surely, 2^{3988303308725} is an apocalyptic number.

It is an amenable number.

3988303308725 is a deficient number, since it is larger than the sum of its proper divisors (1050504042991).

3988303308725 is a wasteful number, since it uses less digits than its factorization.

3988303308725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3010040296 (or 3010040291 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 59.

The spelling of 3988303308725 in words is "three trillion, nine hundred eighty-eight billion, three hundred three million, three hundred eight thousand, seven hundred twenty-five".