3919085885 has 32 divisors (see below), whose sum is σ = 5538008448. Its totient is φ = 2624843520.

The previous prime is 3919085879. The next prime is 3919085909. The reversal of 3919085885 is 5885809193.

It is a de Polignac number, because none of the positive numbers 2^k-3919085885 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3919085885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 310559 + ... + 322931.

It is an arithmetic number, because the mean of its divisors is an integer number (173062764).

Almost surely, 2^3919085885 is an apocalyptic number.

It is an amenable number.

3919085885 is a deficient number, since it is larger than the sum of its proper divisors (1618922563).

3919085885 is a wasteful number, since it uses less digits than its factorization.

3919085885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12845.

The product of its (nonzero) digits is 3110400, while the sum is 56.

The square root of 3919085885 is about 62602.6028612230. The cubic root of 3919085885 is about 1576.6244611785.

It can be divided in two parts, 391908 and 5885, that added together give a palindrome (397793).

The spelling of 3919085885 in words is "three billion, nine hundred nineteen million, eighty-five thousand, eight hundred eighty-five".