2781076580 has 48 divisors (see below), whose sum is σ = 6215345136. Its totient is φ = 1041653760.

The previous prime is 2781076577. The next prime is 2781076589. The reversal of 2781076580 is 856701872.

2781076580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 882208804 + 1898867776 = 29702^2 + 43576^2 .

It is not an unprimeable number, because it can be changed into a prime (2781076589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46220 + ... + 87740.

It is an arithmetic number, because the mean of its divisors is an integer number (129486357).

Almost surely, 2^2781076580 is an apocalyptic number.

2781076580 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 2781076580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3107672568).

2781076580 is an abundant number, since it is smaller than the sum of its proper divisors (3434268556).

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

2781076580 is a wasteful number, since it uses less digits than its factorization.

2781076580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41744 (or 41742 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 44.

The square root of 2781076580 is about 52735.9135694073. The cubic root of 2781076580 is about 1406.2773522120.

The spelling of 2781076580 in words is "two billion, seven hundred eighty-one million, seventy-six thousand, five hundred eighty".