2669690880 has 480 divisors, whose sum is σ = 10191847680. Its totient is φ = 660602880.

The previous prime is 2669690861. The next prime is 2669690909. The reversal of 2669690880 is 880969662.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37601245 + ... + 37601315.

It is an arithmetic number, because the mean of its divisors is an integer number (21233016).

Almost surely, 2^2669690880 is an apocalyptic number.

2669690880 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 2669690880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5095923840).

2669690880 is an abundant number, since it is smaller than the sum of its proper divisors (7522156800).

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

2669690880 is an equidigital number, since it uses as much as digits as its factorization.

2669690880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 2669690880 is about 51669.0514718434. The cubic root of 2669690880 is about 1387.2465687603.

The spelling of 2669690880 in words is "two billion, six hundred sixty-nine million, six hundred ninety thousand, eight hundred eighty".