3988261979603 has 16 divisors (see below), whose sum is σ = 4606929976320. Its totient is φ = 3412292611200.

The previous prime is 3988261979599. The next prime is 3988261979627. The reversal of 3988261979603 is 3069791628893.

It is not a de Polignac number, because 3988261979603 - 2² = 3988261979599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3988261979683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4967138 + ... + 5713928.

It is an arithmetic number, because the mean of its divisors is an integer number (287933123520).

Almost surely, 2^{3988261979603} is an apocalyptic number.

3988261979603 is a deficient number, since it is larger than the sum of its proper divisors (618667996717).

3988261979603 is a wasteful number, since it uses less digits than its factorization.

3988261979603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775378.

The product of its (nonzero) digits is 211631616, while the sum is 71.

The spelling of 3988261979603 in words is "three trillion, nine hundred eighty-eight billion, two hundred sixty-one million, nine hundred seventy-nine thousand, six hundred three".