3988261298213 has 4 divisors (see below), whose sum is σ = 3988538063808. Its totient is φ = 3987984532620.

The previous prime is 3988261298191. The next prime is 3988261298221. The reversal of 3988261298213 is 3128921628893.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3988261298213 - 2⁴⁰ = 2888749670437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3988261298113) 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 in 3 ways as a sum of consecutive naturals, for example, 138361181 + ... + 138390002.

It is an arithmetic number, because the mean of its divisors is an integer number (997134515952).

Almost surely, 2^{3988261298213} is an apocalyptic number.

It is an amenable number.

3988261298213 is a deficient number, since it is larger than the sum of its proper divisors (276765595).

3988261298213 is a wasteful number, since it uses less digits than its factorization.

3988261298213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276765594.

The product of its digits is 17915904, while the sum is 62.

The spelling of 3988261298213 in words is "three trillion, nine hundred eighty-eight billion, two hundred sixty-one million, two hundred ninety-eight thousand, two hundred thirteen".