2620087680 has 256 divisors, whose sum is σ = 9588326400. Its totient is φ = 596140032.

The previous prime is 2620087663. The next prime is 2620087681. The reversal of 2620087680 is 867800262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620087681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5147266 + ... + 5147774.

It is an arithmetic number, because the mean of its divisors is an integer number (37454400).

Almost surely, 2^2620087680 is an apocalyptic number.

2620087680 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 2620087680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4794163200).

2620087680 is an abundant number, since it is smaller than the sum of its proper divisors (6968238720).

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

2620087680 is a wasteful number, since it uses less digits than its factorization.

2620087680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 909 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 2620087680 is about 51186.7920463863. The cubic root of 2620087680 is about 1378.6010608118.

The spelling of 2620087680 in words is "two billion, six hundred twenty million, eighty-seven thousand, six hundred eighty".