3968542779 has 8 divisors (see below), whose sum is σ = 5462080512. Its totient is φ = 2560350120.

The previous prime is 3968542771. The next prime is 3968542811. The reversal of 3968542779 is 9772458693.

3968542779 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3968542779 - 2³ = 3968542771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3968542771) 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, 21336159 + ... + 21336344.

It is an arithmetic number, because the mean of its divisors is an integer number (682760064).

Almost surely, 2^3968542779 is an apocalyptic number.

3968542779 is a deficient number, since it is larger than the sum of its proper divisors (1493537733).

3968542779 is a wasteful number, since it uses less digits than its factorization.

3968542779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42672537.

The product of its digits is 22861440, while the sum is 60.

The square root of 3968542779 is about 62996.3711573929. The cubic root of 3968542779 is about 1583.2288267520.

The spelling of 3968542779 in words is "three billion, nine hundred sixty-eight million, five hundred forty-two thousand, seven hundred seventy-nine".