2606869980 has 576 divisors, whose sum is σ = 10026971136. Its totient is φ = 564537600.

The previous prime is 2606869963. The next prime is 2606870027. The reversal of 2606869980 is 899686062.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 84092565 + ... + 84092595.

It is an arithmetic number, because the mean of its divisors is an integer number (17407936).

Almost surely, 2^2606869980 is an apocalyptic number.

2606869980 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 2606869980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5013485568).

2606869980 is an abundant number, since it is smaller than the sum of its proper divisors (7420101156).

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

2606869980 is a wasteful number, since it uses less digits than its factorization.

2606869980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 65 counting only the distinct ones).

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

The square root of 2606869980 is about 51057.5163908312. The cubic root of 2606869980 is about 1376.2789167502.

The spelling of 2606869980 in words is "two billion, six hundred six million, eight hundred sixty-nine thousand, nine hundred eighty".