4378911911 has 8 divisors (see below), whose sum is σ = 4787783424. Its totient is φ = 3971838520.

The previous prime is 4378911881. The next prime is 4378911917. The reversal of 4378911911 is 1191198734.

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 4378911911 - 2¹⁴ = 4378895527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4378911917) 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, 444431 + ... + 454176.

It is an arithmetic number, because the mean of its divisors is an integer number (598472928).

Almost surely, 2^4378911911 is an apocalyptic number.

4378911911 is a deficient number, since it is larger than the sum of its proper divisors (408871513).

4378911911 is a wasteful number, since it uses less digits than its factorization.

4378911911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899061.

The product of its digits is 54432, while the sum is 44.

The square root of 4378911911 is about 66173.3474368646. The cubic root of 4378911911 is about 1636.0204811242.

The spelling of 4378911911 in words is "four billion, three hundred seventy-eight million, nine hundred eleven thousand, nine hundred eleven".