4091779908 has 48 divisors (see below), whose sum is σ = 10611832000. Its totient is φ = 1363474944.

The previous prime is 4091779889. The next prime is 4091779943. The reversal of 4091779908 is 8099771904.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542628 + ... + 550116.

Almost surely, 2^4091779908 is an apocalyptic number.

It is an amenable number.

4091779908 is an abundant number, since it is smaller than the sum of its proper divisors (6520052092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4091779908 is a wasteful number, since it uses less digits than its factorization.

4091779908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12561 (or 12553 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The square root of 4091779908 is about 63967.0220347954. The cubic root of 4091779908 is about 1599.4503200333.

The spelling of 4091779908 in words is "four billion, ninety-one million, seven hundred seventy-nine thousand, nine hundred eight".