3988154081 has 2 divisors, whose sum is σ = 3988154082. Its totient is φ = 3988154080.

The previous prime is 3988154059. The next prime is 3988154099. The reversal of 3988154081 is 1804518893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2014573456 + 1973580625 = 44884^2 + 44425^2 .

It is a cyclic number.

It is not a de Polignac number, because 3988154081 - 2¹⁴ = 3988137697 is a prime.

It is a super-2 number, since 2×3988154081² = 31810745947593909122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3988154041) 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, 1994077040 + 1994077041.

It is an arithmetic number, because the mean of its divisors is an integer number (1994077041).

Almost surely, 2^3988154081 is an apocalyptic number.

It is an amenable number.

3988154081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3988154081 is an equidigital number, since it uses as much as digits as its factorization.

3988154081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 47.

The square root of 3988154081 is about 63151.8335521622. The cubic root of 3988154081 is about 1585.8324838299.

The spelling of 3988154081 in words is "three billion, nine hundred eighty-eight million, one hundred fifty-four thousand, eighty-one".