2112891626 has 8 divisors (see below), whose sum is σ = 3169592100. Its totient is φ = 1056360928.

The previous prime is 2112891617. The next prime is 2112891647. The reversal of 2112891626 is 6261982112.

It can be written as a sum of positive squares in 2 ways, for example, as 2089861225 + 23030401 = 45715^2 + 4799^2 .

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

It is a super-2 number, since 2×2112891626² = 8928622046441847752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2112891626.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4571 + ... + 65166.

Almost surely, 2^2112891626 is an apocalyptic number.

2112891626 is a deficient number, since it is larger than the sum of its proper divisors (1056700474).

2112891626 is a wasteful number, since it uses less digits than its factorization.

2112891626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84888.

The product of its digits is 20736, while the sum is 38.

The square root of 2112891626 is about 45966.2009089287. The cubic root of 2112891626 is about 1283.1942571650.

The spelling of 2112891626 in words is "two billion, one hundred twelve million, eight hundred ninety-one thousand, six hundred twenty-six".