2667890505 has 24 divisors (see below), whose sum is σ = 4965544512. Its totient is φ = 1219606752.

The previous prime is 2667890501. The next prime is 2667890509. The reversal of 2667890505 is 5050987662.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2667890501) and next prime (2667890509).

It is not a de Polignac number, because 2667890505 - 2² = 2667890501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2667890501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1814157 + ... + 1815626.

It is an arithmetic number, because the mean of its divisors is an integer number (206897688).

Almost surely, 2^2667890505 is an apocalyptic number.

It is an amenable number.

2667890505 is a deficient number, since it is larger than the sum of its proper divisors (2297654007).

2667890505 is a wasteful number, since it uses less digits than its factorization.

2667890505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629805 (or 3629798 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 48.

The square root of 2667890505 is about 51651.6263538720. The cubic root of 2667890505 is about 1386.9346567829.

The spelling of 2667890505 in words is "two billion, six hundred sixty-seven million, eight hundred ninety thousand, five hundred five".