2559869680 has 20 divisors (see below), whose sum is σ = 5951697192. Its totient is φ = 1023947840.

The previous prime is 2559869659. The next prime is 2559869699. The reversal of 2559869680 is 869689552.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15999106 + ... + 15999265.

Almost surely, 2^2559869680 is an apocalyptic number.

2559869680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2559869680 is an abundant number, since it is smaller than the sum of its proper divisors (3391827512).

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

2559869680 is a wasteful number, since it uses less digits than its factorization.

2559869680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31998384 (or 31998378 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 58.

The square root of 2559869680 is about 50595.1547087268. The cubic root of 2559869680 is about 1367.9575440240.

The spelling of 2559869680 in words is "two billion, five hundred fifty-nine million, eight hundred sixty-nine thousand, six hundred eighty".