2606890641 has 8 divisors (see below), whose sum is σ = 3476956224. Its totient is φ = 1737376080.

The previous prime is 2606890639. The next prime is 2606890667. The reversal of 2606890641 is 1460986062.

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

It is not a de Polignac number, because 2606890641 - 2¹ = 2606890639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2606890593 and 2606890602.

It is not an unprimeable number, because it can be changed into a prime (2606890631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126586 + ... + 145731.

It is an arithmetic number, because the mean of its divisors is an integer number (434619528).

Almost surely, 2^2606890641 is an apocalyptic number.

It is an amenable number.

2606890641 is a deficient number, since it is larger than the sum of its proper divisors (870065583).

2606890641 is a wasteful number, since it uses less digits than its factorization.

2606890641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275511.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 2606890641 is about 51057.7187210710. The cubic root of 2606890641 is about 1376.2825526844.

The spelling of 2606890641 in words is "two billion, six hundred six million, eight hundred ninety thousand, six hundred forty-one".