2658949888 has 72 divisors (see below), whose sum is σ = 6103612928. Its totient is φ = 1132434432.

The previous prime is 2658949877. The next prime is 2658949897. The reversal of 2658949888 is 8889498562.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287545 + ... + 296647.

Almost surely, 2^2658949888 is an apocalyptic number.

2658949888 is a gapful number since it is divisible by the number (28) 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 2658949888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3051806464).

2658949888 is an abundant number, since it is smaller than the sum of its proper divisors (3444663040).

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

2658949888 is an equidigital number, since it uses as much as digits as its factorization.

2658949888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9289 (or 9275 counting only the distinct ones).

The product of its digits is 79626240, while the sum is 67.

The square root of 2658949888 is about 51565.0064287788. The cubic root of 2658949888 is about 1385.3836274771.

The spelling of 2658949888 in words is "two billion, six hundred fifty-eight million, nine hundred forty-nine thousand, eight hundred eighty-eight".