2560912780 has 12 divisors (see below), whose sum is σ = 5377916880. Its totient is φ = 1024365104.

The previous prime is 2560912763. The next prime is 2560912799. The reversal of 2560912780 is 872190652.

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, 64022800 + ... + 64022839.

It is an arithmetic number, because the mean of its divisors is an integer number (448159740).

Almost surely, 2^2560912780 is an apocalyptic number.

2560912780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2560912780 is an abundant number, since it is smaller than the sum of its proper divisors (2817004100).

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

2560912780 is a wasteful number, since it uses less digits than its factorization.

2560912780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128045648 (or 128045646 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 2560912780 is about 50605.4619581721. The cubic root of 2560912780 is about 1368.1433246720.

The spelling of 2560912780 in words is "two billion, five hundred sixty million, nine hundred twelve thousand, seven hundred eighty".