3981173619 has 32 divisors (see below), whose sum is σ = 5636646400. Its totient is φ = 2496033792.

The previous prime is 3981173617. The next prime is 3981173639. The reversal of 3981173619 is 9163711893.

It is not a de Polignac number, because 3981173619 - 2¹ = 3981173617 is a prime.

It is a super-2 number, since 2×3981173619² = 31699486769243114322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3981173617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 458682 + ... + 467280.

It is an arithmetic number, because the mean of its divisors is an integer number (176145200).

Almost surely, 2^3981173619 is an apocalyptic number.

3981173619 is a deficient number, since it is larger than the sum of its proper divisors (1655472781).

3981173619 is a wasteful number, since it uses less digits than its factorization.

3981173619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8779.

The product of its digits is 244944, while the sum is 48.

The square root of 3981173619 is about 63096.5420526355. The cubic root of 3981173619 is about 1584.9067165061.

The spelling of 3981173619 in words is "three billion, nine hundred eighty-one million, one hundred seventy-three thousand, six hundred nineteen".