3988354796218 has 12 divisors (see below), whose sum is σ = 6478126577838. Its totient is φ = 1840779136560.

The previous prime is 3988354796201. The next prime is 3988354796219. The reversal of 3988354796218 is 8126974538893.

It can be written as a sum of positive squares in 3 ways, for example, as 1467191970729 + 2521162825489 = 1211277^2 + 1587817^2 .

It is not an unprimeable number, because it can be changed into a prime (3988354796219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5899932793 + ... + 5899933468.

Almost surely, 2^{3988354796218} is an apocalyptic number.

3988354796218 is a deficient number, since it is larger than the sum of its proper divisors (2489771781620).

3988354796218 is a wasteful number, since it uses less digits than its factorization.

3988354796218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11799866289 (or 11799866276 counting only the distinct ones).

The product of its digits is 627056640, while the sum is 73.

The spelling of 3988354796218 in words is "three trillion, nine hundred eighty-eight billion, three hundred fifty-four million, seven hundred ninety-six thousand, two hundred eighteen".