2669459820 has 48 divisors (see below), whose sum is σ = 7477693440. Its totient is φ = 711550656.

The previous prime is 2669459789. The next prime is 2669459869. The reversal of 2669459820 is 289549662.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154959 + ... + 171321.

It is an arithmetic number, because the mean of its divisors is an integer number (155785280).

Almost surely, 2^2669459820 is an apocalyptic number.

2669459820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2669459820 is an abundant number, since it is smaller than the sum of its proper divisors (4808233620).

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

2669459820 is a wasteful number, since it uses less digits than its factorization.

2669459820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19094 (or 19092 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 51.

The square root of 2669459820 is about 51666.8154621513. The cubic root of 2669459820 is about 1387.2065458445.

The spelling of 2669459820 in words is "two billion, six hundred sixty-nine million, four hundred fifty-nine thousand, eight hundred twenty".