2667699648 has 84 divisors (see below), whose sum is σ = 7658804088. Its totient is φ = 887800320.

The previous prime is 2667699611. The next prime is 2667699703. The reversal of 2667699648 is 8469967662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 390018 + ... + 396798.

Almost surely, 2^2667699648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2667699648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3829402044).

2667699648 is an abundant number, since it is smaller than the sum of its proper divisors (4991104440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2667699648 is a wasteful number, since it uses less digits than its factorization.

2667699648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7482 (or 7469 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 63.

The square root of 2667699648 is about 51649.7787797779. The cubic root of 2667699648 is about 1386.9015828993.

The spelling of 2667699648 in words is "two billion, six hundred sixty-seven million, six hundred ninety-nine thousand, six hundred forty-eight".