2871138842 has 32 divisors (see below), whose sum is σ = 5222859264. Its totient is φ = 1165809600.

The previous prime is 2871138833. The next prime is 2871138871. The reversal of 2871138842 is 2488311782.

It is a super-2 number, since 2×2871138842² = 16486876500082201928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2871138793 and 2871138802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153053 + ... + 170784.

It is an arithmetic number, because the mean of its divisors is an integer number (163214352).

Almost surely, 2^2871138842 is an apocalyptic number.

2871138842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2871138842 is a deficient number, since it is larger than the sum of its proper divisors (2351720422).

2871138842 is a wasteful number, since it uses less digits than its factorization.

2871138842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323894.

The product of its digits is 172032, while the sum is 44.

The square root of 2871138842 is about 53583.0088927451. The cubic root of 2871138842 is about 1421.2966470788.

The spelling of 2871138842 in words is "two billion, eight hundred seventy-one million, one hundred thirty-eight thousand, eight hundred forty-two".