2809112642 has 8 divisors (see below), whose sum is σ = 4815621696. Its totient is φ = 1203905412.

The previous prime is 2809112641. The next prime is 2809112653. The reversal of 2809112642 is 2462119082.

2809112642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2809112642² = 15782227670888440328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2809112641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100325438 + ... + 100325465.

It is an arithmetic number, because the mean of its divisors is an integer number (601952712).

Almost surely, 2^2809112642 is an apocalyptic number.

2809112642 is a deficient number, since it is larger than the sum of its proper divisors (2006509054).

2809112642 is a wasteful number, since it uses less digits than its factorization.

2809112642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200650912.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 2809112642 is about 53001.0626497243. The cubic root of 2809112642 is about 1410.9871266110.

The spelling of 2809112642 in words is "two billion, eight hundred nine million, one hundred twelve thousand, six hundred forty-two".