3988278313553 has 2 divisors, whose sum is σ = 3988278313554. Its totient is φ = 3988278313552.

The previous prime is 3988278313519. The next prime is 3988278313559. The reversal of 3988278313553 is 3553138728893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2459524114369 + 1528754199184 = 1568287^2 + 1236428^2 .

It is a cyclic number.

It is not a de Polignac number, because 3988278313553 - 2³² = 3983983346257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3988278313553.

It is not a weakly prime, because it can be changed into another prime (3988278313559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1994139156776 + 1994139156777.

It is an arithmetic number, because the mean of its divisors is an integer number (1994139156777).

Almost surely, 2^{3988278313553} is an apocalyptic number.

It is an amenable number.

3988278313553 is a deficient number, since it is larger than the sum of its proper divisors (1).

3988278313553 is an equidigital number, since it uses as much as digits as its factorization.

3988278313553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 130636800, while the sum is 65.

The spelling of 3988278313553 in words is "three trillion, nine hundred eighty-eight billion, two hundred seventy-eight million, three hundred thirteen thousand, five hundred fifty-three".