2691484656 has 160 divisors (see below), whose sum is σ = 8433745920. Its totient is φ = 722971392.

The previous prime is 2691484651. The next prime is 2691484687. The reversal of 2691484656 is 6564841962.

It is a junction number, because it is equal to n+sod(n) for n = 2691484599 and 2691484608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2691484651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 453001 + ... + 458903.

It is an arithmetic number, because the mean of its divisors is an integer number (52710912).

Almost surely, 2^2691484656 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 2691484656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4216872960).

2691484656 is an abundant number, since it is smaller than the sum of its proper divisors (5742261264).

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

2691484656 is a wasteful number, since it uses less digits than its factorization.

2691484656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6003 (or 5997 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The square root of 2691484656 is about 51879.5205837525. The cubic root of 2691484656 is about 1391.0112297128.

The spelling of 2691484656 in words is "two billion, six hundred ninety-one million, four hundred eighty-four thousand, six hundred fifty-six".