2782555780 has 24 divisors (see below), whose sum is σ = 5865596352. Its totient is φ = 1108788192.

The previous prime is 2782555751. The next prime is 2782555823. The reversal of 2782555780 is 875552872.

2782555780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2782555780² = 15485233337622816800, which contains 22 as substring.

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, 259242 + ... + 269761.

It is an arithmetic number, because the mean of its divisors is an integer number (244399848).

Almost surely, 2^2782555780 is an apocalyptic number.

2782555780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2782555780 is an abundant number, since it is smaller than the sum of its proper divisors (3083040572).

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

2782555780 is a wasteful number, since it uses less digits than its factorization.

2782555780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529275 (or 529273 counting only the distinct ones).

The product of its (nonzero) digits is 1568000, while the sum is 49.

The square root of 2782555780 is about 52749.9363032791. The cubic root of 2782555780 is about 1406.5266317876.

The spelling of 2782555780 in words is "two billion, seven hundred eighty-two million, five hundred fifty-five thousand, seven hundred eighty".