2689858080 has 432 divisors, whose sum is σ = 11366671680. Its totient is φ = 567171072.

The previous prime is 2689858069. The next prime is 2689858091. The reversal of 2689858080 is 808589862.

It is an interprime number because it is at equal distance from previous prime (2689858069) and next prime (2689858091).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1702731 + ... + 1704309.

It is an arithmetic number, because the mean of its divisors is an integer number (26311740).

Almost surely, 2^2689858080 is an apocalyptic number.

2689858080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2689858080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5683335840).

2689858080 is an abundant number, since it is smaller than the sum of its proper divisors (8676813600).

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

2689858080 is a wasteful number, since it uses less digits than its factorization.

2689858080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633 (or 1609 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 54.

The square root of 2689858080 is about 51863.8417396938. The cubic root of 2689858080 is about 1390.7309579526.

The spelling of 2689858080 in words is "two billion, six hundred eighty-nine million, eight hundred fifty-eight thousand, eighty".