2698699680 has 336 divisors, whose sum is σ = 10128883464. Its totient is φ = 676823040.

The previous prime is 2698699667. The next prime is 2698699709. The reversal of 2698699680 is 869968962.

It can be written as a sum of positive squares in 4 ways, for example, as 2087027856 + 611671824 = 45684^2 + 24732^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1982200 + ... + 1983560.

Almost surely, 2^2698699680 is an apocalyptic number.

2698699680 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 2698699680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5064441732).

2698699680 is an abundant number, since it is smaller than the sum of its proper divisors (7430183784).

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

2698699680 is a wasteful number, since it uses less digits than its factorization.

2698699680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411 (or 1388 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 63.

The square root of 2698699680 is about 51949.0103851844. The cubic root of 2698699680 is about 1392.2530752706.

The spelling of 2698699680 in words is "two billion, six hundred ninety-eight million, six hundred ninety-nine thousand, six hundred eighty".