3988172955 has 16 divisors (see below), whose sum is σ = 6871929120. Its totient is φ = 1963408128.

The previous prime is 3988172939. The next prime is 3988172957. The reversal of 3988172955 is 5592718893.

It is not a de Polignac number, because 3988172955 - 2⁴ = 3988172939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3988172895 and 3988172904.

It is not an unprimeable number, because it can be changed into a prime (3988172957) 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 15 ways as a sum of consecutive naturals, for example, 10225890 + ... + 10226279.

It is an arithmetic number, because the mean of its divisors is an integer number (429495570).

Almost surely, 2^3988172955 is an apocalyptic number.

3988172955 is a deficient number, since it is larger than the sum of its proper divisors (2883756165).

3988172955 is a wasteful number, since it uses less digits than its factorization.

3988172955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20452190.

The product of its digits is 5443200, while the sum is 57.

The square root of 3988172955 is about 63151.9829854930. The cubic root of 3988172955 is about 1585.8349854847.

The spelling of 3988172955 in words is "three billion, nine hundred eighty-eight million, one hundred seventy-two thousand, nine hundred fifty-five".