3138505886 has 16 divisors (see below), whose sum is σ = 4731922800. Its totient is φ = 1561211520.

The previous prime is 3138505883. The next prime is 3138505897. The reversal of 3138505886 is 6885058313.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3138505886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138505883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612965 + ... + 618063.

It is an arithmetic number, because the mean of its divisors is an integer number (295745175).

Almost surely, 2^3138505886 is an apocalyptic number.

3138505886 is a deficient number, since it is larger than the sum of its proper divisors (1593416914).

3138505886 is a wasteful number, since it uses less digits than its factorization.

3138505886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6619.

The product of its (nonzero) digits is 691200, while the sum is 47.

The square root of 3138505886 is about 56022.3695143288. The cubic root of 3138505886 is about 1464.1120527843.

The spelling of 3138505886 in words is "three billion, one hundred thirty-eight million, five hundred five thousand, eight hundred eighty-six".