2580646620 has 24 divisors (see below), whose sum is σ = 7225810704. Its totient is φ = 688172416.

The previous prime is 2580646609. The next prime is 2580646637. The reversal of 2580646620 is 266460852.

2580646620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 21505329 + ... + 21505448.

It is an arithmetic number, because the mean of its divisors is an integer number (301075446).

Almost surely, 2^2580646620 is an apocalyptic number.

2580646620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2580646620 is an abundant number, since it is smaller than the sum of its proper divisors (4645164084).

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

2580646620 is a wasteful number, since it uses less digits than its factorization.

2580646620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43010789 (or 43010787 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 2580646620 is about 50800.0651574385. The cubic root of 2580646620 is about 1371.6485420658.

The spelling of 2580646620 in words is "two billion, five hundred eighty million, six hundred forty-six thousand, six hundred twenty".