4414779891 has 12 divisors (see below), whose sum is σ = 6394284832. Its totient is φ = 2935164816.

The previous prime is 4414779841. The next prime is 4414779911. The reversal of 4414779891 is 1989774144.

4414779891 is a `hidden beast` number, since 441 + 47 + 79 + 8 + 91 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-4414779891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4414779841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 664996 + ... + 671601.

Almost surely, 2^4414779891 is an apocalyptic number.

4414779891 is a deficient number, since it is larger than the sum of its proper divisors (1979504941).

4414779891 is a wasteful number, since it uses less digits than its factorization.

4414779891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336970 (or 1336967 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The square root of 4414779891 is about 66443.8100277219. The cubic root of 4414779891 is about 1640.4752602123.

The spelling of 4414779891 in words is "four billion, four hundred fourteen million, seven hundred seventy-nine thousand, eight hundred ninety-one".