3948888818985 has 48 divisors (see below), whose sum is σ = 7184299389120. Its totient is φ = 1848591606400.

The previous prime is 3948888818983. The next prime is 3948888819017. The reversal of 3948888818985 is 5898188888493.

3948888818985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3948888818985 - 2¹ = 3948888818983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (87).

It is not an unprimeable number, because it can be changed into a prime (3948888818983) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37459371 + ... + 37564640.

It is an arithmetic number, because the mean of its divisors is an integer number (149672903940).

Almost surely, 2^{3948888818985} is an apocalyptic number.

It is an amenable number.

3948888818985 is a deficient number, since it is larger than the sum of its proper divisors (3235410570135).

3948888818985 is a wasteful number, since it uses less digits than its factorization.

3948888818985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75024070 (or 75024059 counting only the distinct ones).

The product of its digits is 10192158720, while the sum is 87.

The spelling of 3948888818985 in words is "three trillion, nine hundred forty-eight billion, eight hundred eighty-eight million, eight hundred eighteen thousand, nine hundred eighty-five".