11883857838 has 16 divisors (see below), whose sum is σ = 25018648320. Its totient is φ = 3752797176.

The previous prime is 11883857827. The next prime is 11883857891. The reversal of 11883857838 is 83875838811.

11883857838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11883857838² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 52122070 + ... + 52122297.

It is an arithmetic number, because the mean of its divisors is an integer number (1563665520).

Almost surely, 2^11883857838 is an apocalyptic number.

11883857838 is an abundant number, since it is smaller than the sum of its proper divisors (13134790482).

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

11883857838 is a wasteful number, since it uses less digits than its factorization.

11883857838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104244391.

The product of its digits is 10321920, while the sum is 60.

The spelling of 11883857838 in words is "eleven billion, eight hundred eighty-three million, eight hundred fifty-seven thousand, eight hundred thirty-eight".