3968519979 has 8 divisors (see below), whose sum is σ = 5306610240. Its totient is φ = 2638054856.

The previous prime is 3968519869. The next prime is 3968520013. The reversal of 3968519979 is 9799158693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3968519979 - 2¹⁶ = 3968454443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3968519179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1905069 + ... + 1907150.

It is an arithmetic number, because the mean of its divisors is an integer number (663326280).

Almost surely, 2^3968519979 is an apocalyptic number.

3968519979 is a deficient number, since it is larger than the sum of its proper divisors (1338090261).

3968519979 is a wasteful number, since it uses less digits than its factorization.

3968519979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3812569.

The product of its digits is 33067440, while the sum is 66.

The square root of 3968519979 is about 62996.1901943284. The cubic root of 3968519979 is about 1583.2257947670.

The spelling of 3968519979 in words is "three billion, nine hundred sixty-eight million, five hundred nineteen thousand, nine hundred seventy-nine".